Congratulations on your win and thanks for posting a serious game.
I think mostly black plays too many moves near thickness, both near black's and white's. Also, for much of the game, white's group in the upper right is very weak, but both players ignore this. If black gets a good attack on it at any of several points, the game could end much sooner.
(;CA[utf-8]RU[Japanese]OT[5x30 byo-yomi]GM[1]FF[4]AB[dd][pd][dp][pp]AP[CGoban:3]
SZ[19]ST[2]DT[2011-02-11]PC[The KGS Go Server at
http://www.gokgs.com/]PB[terraform]
BR[15k]PW[zamchan]WR[11k]KM[0.5]HA[4]TM[1500]RE[B+3.50]MULTIGOGM[1]
;W[qf]WL[1496.62];B[nc]BL[1484.81];W[rd]WL[1494.67];B[qc]BL[1478.09];W[rc]WL[1492.65]
;B[qb]BL[1471.59];W[rb]WL[1491.15];B[qi]BL[1461.15];W[qn]WL[1488.69];B[ql]BL[1453.57]
;W[rp]WL[1486.42];B[qq]BL[1445.48];W[rq]WL[1484.09];B[rr]BL[1440.68];W[qp]WL[1478.03]
;B[pq]BL[1429.02];W[po]WL[1476.22];B[rm]BL[1418.97];W[rn]WL[1473.83];B[rg]BL[1412.22]
;W[rf]WL[1471.73];B[sf]BL[1404.3];W[se]WL[1469.09];B[sg]BL[1395.37];W[qj]WL[1461.48]
;B[pj]BL[1388.3];W[qk]WL[1460.36];B[pk]BL[1381.19];W[ri]WL[1437.08];B[qh]BL[1367.91]
;W[rh]WL[1415.12];B[qg]BL[1354.63];W[qm]WL[1409.37];B[rl]BL[1345.08];W[pl]WL[1404.19]
;B[rj]BL[1313.69];W[ol]WL[1401.67];B[oo]BL[1304.94];W[on]WL[1399.46];B[no]BL[1296.25]
;W[nn]WL[1396.68]
(;B[kc]BL[1278.63]C[This is a little slow.];W[mq]WL[1395.71];B[kq]BL[1262.53];W[op]
WL[1388.86];B[np]BL[1214.93];W[oq]WL[1386.05];B[or]BL[1206.79];W[nq]WL[1384.27]
;B[lp]BL[1196.08];W[nr]WL[1359.91];B[pr]BL[1159.39];W[lr]WL[1329.31];B[kr]BL[1151.75]
;W[kp]WL[1320.71]
(;B[jp]BL[1137.55];W[mp]WL[1315.5];B[mo]BL[1128.68];W[lo]WL[1313.42];B[lq]BL[1121.73]
;W[mn]WL[1310.24];B[qs]BL[1091.29];W[os]WL[1303.61];B[sr]BL[1043.3];W[ns]WL[1285.59]
;B[ps]BL[1038.73];W[ko]WL[1283.99];B[ls]BL[1016.63]SQ[jp][kq][kr][lq][lp]C[This atari doesn't help black's base. White is so strong in this area that black's marked stones are junk, so maybe don't defend them.]
(;W[mr]WL[1281.84];B[ip]BL[993.391];W[fq]WL[1274.44];B[fo]BL[974.061];W[dr]WL[1272.33]
;B[gp]BL[946.531];W[hr]WL[1269.21];B[cn]BL[938.928];W[jq]WL[1267.11]
(;B[jr]BL[908.733]C[Even if you save these stones, it is too small. There are several moves larger on the board.]
;W[iq]WL[1264.25];B[hq]BL[903.701];W[ir]WL[1261.37];B[in]BL[857.675]SQ[ko][kp][lo]
[mn][on][nn][ol][qm][qn][rn][po][mp][lr][mq][mr][nq][nr][ns][os][oq][op][pl][qp]
[rp][rq]C[This kind of move near an invincible group of white's is very small. It is not clear what it is doing because it doesn't defend black.]
;W[gq]WL[1254.5];B[il]BL[843.515]C[Similar comment. Too close to white's thickness and to black's thickness.]
;W[bq]WL[1252.1];B[bp]BL[828.033];W[cq]WL[1249.36];B[ck]BL[820.073]C[Very close to black's strong group.]
;W[cp]WL[1241.87];B[do]BL[807.602];W[co]WL[1239.74];B[dn]BL[801.999];W[bo]WL[1236.41]
;B[bn]BL[799.357];W[fc]WL[1228.14]SQ[il][in]C[Wouldn't black rather have played the marked stones up in this F17 area before this happened?]
;B[ec]BL[789.987];W[fd]WL[1220.21]
(;B[hb]BL[778.717];W[cf]WL[1218.2];B[ce]BL[771.011];W[df]WL[1215.93];B[ee]BL[763.206]
;W[de]WL[1213.2];B[cd]BL[754.326];W[ed]WL[1211.34];B[eb]BL[745.228];W[ff]WL[1209.43]
;B[fb]BL[741.152];W[hd]WL[1207.3];B[bh]BL[726.998];W[dh]WL[1201.53];B[ci]BL[720.582]
;W[di]WL[1199.6];B[dj]BL[713.87];W[fi]WL[1197.92];B[ke]BL[699.455];W[pf]WL[1193.55]
;B[oe]BL[686.826];W[of]WL[1190.3];B[ne]BL[677.438];W[oh]WL[1186.83];B[og]BL[662.013]
LB[qe:A]C[It is like the point A is radioactive.];W[pg]WL[1183.04];B[ng]BL[655.784]
;W[ph]WL[1181.5];B[nf]BL[653.384];W[pi]WL[1178.47];B[rk]BL[612.553]C[Total gote.]
;W[nh]WL[1175.73];B[nj]BL[601.869];W[mh]WL[1153.81];B[lj]BL[568.361];W[ib]WL[1149.27]
;B[ic]BL[560.496];W[jb]WL[1143.29];B[jc]BL[541.089];W[mc]WL[1136.54];B[md]BL[528.774]
;W[lc]WL[1134.35];B[kb]BL[517.669];W[ld]WL[1129.85];B[le]BL[512.952];W[kd]WL[1127.09]
;B[jd]BL[504.494];W[je]WL[1125.97];B[jf]BL[496.144];W[ie]WL[1123.27]
(;B[hc]BL[482.456]C[Slow move.];W[kf]WL[1119.19];B[kg]BL[463.945];W[lf]WL[1117.46]
;B[me]BL[463.081];W[lg]WL[1116.47];B[jg]BL[445.26];W[kh]WL[1113.36];B[ih]BL[435.791]
;W[jh]WL[1107.12];B[ig]BL[428.104];W[ii]WL[1104.94];B[gd]BL[410.769];W[ge]WL[1099.68]
;B[gc]BL[403.708];W[fe]WL[1097.74];B[hi]BL[393.218];W[ij]WL[1095.16];B[hj]BL[347.923]
;W[hh]WL[1092.7];B[ji]BL[341.125];W[jj]WL[1090.53];B[ki]BL[337.468];W[lh]WL[1089.49]
;B[kk]BL[312.703];W[hg]WL[1086.87];B[fk]BL[277.156];W[fj]WL[1075.08];B[ek]BL[267.94]
;W[hk]WL[1070.33];B[gl]BL[240.771];W[hl]WL[1048.36];B[gm]BL[233.412];W[hm]WL[1040.46]
;B[im]BL[202.153];W[hn]WL[1034.28];B[jk]BL[189.233];W[ik]WL[1023.05];B[jl]BL[151.25]
;W[gk]WL[965.24];B[bf]BL[121.668];W[gn]WL[959.022];B[fn]BL[100.199];W[hp]WL[949.855]
;B[io]BL[90.044];W[ho]WL[921.941];B[kj]BL[83.212];W[ok]WL[898.323];B[oj]BL[77.178]
;W[mk]WL[897.409];B[mj]BL[70.457];W[nk]WL[895.612];B[ll]BL[60.374];W[km]WL[892.951]
;B[lm]BL[48.259];W[ln]WL[880.455];B[jn]BL[39.112];W[kn]WL[876.816];B[ml]BL[26.768]
;W[nl]WL[870.591];B[fp]BL[11.598];W[eq]WL[865.46];OB[5]B[sq]BL[30];W[sp]WL[861.02]
;OB[4]B[ch]BL[30];W[cb]WL[856.871];OB[4]B[bc]BL[30];W[bg]WL[838.668];OB[4]B[cg]
BL[30];W[dc]WL[833.963];OB[3]B[db]BL[30];W[cc]WL[828.919];OB[3]B[bb]BL[30];W[be]
WL[825.961];OB[3]B[bd]BL[30];W[af]WL[823.59];OB[3]B[ah]BL[30];W[dg]WL[820.087];OB[2]
B[ao]BL[30];W[ap]WL[816.647];OB[2]B[an]BL[30];W[ep]WL[815.472];OB[2]B[eo]BL[30]
;W[dq]WL[814.03];OB[2]B[sn]BL[30];W[so]WL[810.879];OB[2]B[sm]BL[30];W[ej]WL[806.368]
;OB[2]B[qe]BL[30];W[re]WL[802.23];OB[2]B[ra]BL[30];W[qd]WL[791.672];OB[2]B[pe]BL[30]
;W[pc]WL[790.208];OB[2]B[pb]BL[30];W[oc]WL[788.536];OB[2]B[ob]BL[30];W[nb]WL[787.472]
;OB[2]B[od]BL[30];W[mb]WL[785.749];OB[2]B[lb]BL[30];W[id]WL[780.533];OB[2]B[sa]
BL[30];W[sb]WL[778.224];OB[2]B[qa]BL[30];W[if]WL[768.675];OB[2]B[ag]BL[30];W[bf]
WL[766.203];OB[2]B[ad]BL[30];W[kl]WL[758.885];OB[2]B[lk]BL[30];W[jo]WL[755.093]
;OB[2]B[]BL[30];W[jm]WL[748.666];OB[2]B[mm]BL[30];W[li]WL[746.853];OB[2]B[nm]BL[30]
;W[om]WL[746.006];OB[2]B[]BL[30];W[mi]WL[744.899];OB[2]B[]BL[30];W[ni]WL[744.178]
;OB[2]B[]BL[30];W[oi]WL[743.361];OB[2]B[]BL[30];W[]WL[743.359]TB[ia][ja][ka][la]
[ma][na][oa][pa][ab][cb][ib][jb][mb][gb][nb][ac][cc][dc][lc][mc][oc][pc][kd][ld]
[nd][rh][sh][ai][bi][ri][si][aj][bj][cj][qj][sj][ak][bk][dk][qk][sk][al][cl][dl]
[el][fl][da][sl][am][bm][cm][dm][em][fm][en][qr][rs][ss][aa][ba][ca][bl][ea][fa]
[ga][ha]TW[sc][sd][ee][he][ef][gf][hf][jf][eg][fg][gg][ig][jg][eh][fh][gh][ih][ei]
[gi][hi][gj][hj][pm][pn][mo][no][oo][qo][ro][bp][lp][np][aq][hq][kq][lq][ar][br]
[cr][er][fr][gr][jr][kr][as][cs][ds][es][fs][gs][hs][is][js][ks][ls][ms][kg][bs])
(;B[kh]C[Something like this looks pretty sente against the white group.];W[kf]
C[If white cuts.];B[jg]C[Black can defend in sente.];W[ra]C[White needs to live and black is still about 25 points ahead.
This is the last comment.]))
(;B[df]C[Proper to defend this side.]))
(;B[cq]C[Not necessarily now, but later, if black gets this move.];W[];B[iq];W[jr]
C[White doesn't have time to capture here, because...];B[ir];W[ks];B[gr]C[White would have a bigger problem.]))
(;B[qe]C[Take compensation elsewhere.]))
(;B[lq]C[This looks better.]))
(;B[qe]C[First of all, white's not alive here, so there is no need to defend the top right away.])
(;B[mo]C[If white N3 is hard to handle, better to continue here first.]))