Any help very appreciated
SGF content as follows:
(;FF[4]GM[1]SZ[19]CA[UTF-8]AP[Igowin iPhone:1.1]PB[User]BR[7 Kyu]HA[0]PW[Igowin Pro]WR[5 Kyu]KM[6.5]DT[2015-04-16]RU[Japanese]GN[sempre meglio ];B[pd];W[cq];B[pq];W[dc];B[qk];W[jq];B[jd]C[Is this the proper way to develop? ];W[nq]
;B[po]C[Is this necessary or tenuki? ];W[lp];B[fc];W[ed];B[fd];W[ee];B[qg]C[I Belive this is a waste of time but i hate invasions and tried to strenghten my position. Where to play instead? ];W[ok]
;B[mc]C[Same as before. ];W[pi];B[qi];W[ph];B[qh];W[gp];B[pl];W[ol]
;B[cj]C[Are this invasion correct? ];W[pm];B[qm];W[pk];B[ql];W[ch];B[cm]C[A base... ];W[co]
;B[dn];W[do];B[en];W[gn];B[fm]C[Is shape but i m overconcentrated.. Or not? ];W[gm];B[gl];W[hl]
;B[el];W[gk];B[fl];W[hk];B[fe];W[ff];B[gf];W[fg]
;B[gg];W[fh];B[gh];W[fi];B[gi];W[of]C[A blunder i Belive.. Isn't it? ];B[fj];W[gj]
;B[fk];W[ej];B[ei];W[eh];B[di];W[dh];B[ci];W[bi]
;B[bj];W[bh];B[ec];W[db];B[eb];W[dd];B[eo];W[ep]
;B[bn]C[I Belive its a mistake but where to play? ];W[bo];B[cn];W[pg];B[pf];W[og];B[pe];W[ne]
;B[kf]C[Is this way the correct developement? Maybe something like n15? ];W[mg];B[lg];W[mh];B[lh];W[li];B[ki];W[kj]
;B[lj];W[mi];B[jj];W[kk];B[jh];W[jk];B[ij];W[hi]
;B[hj];W[ii];B[ji];W[or];B[pr];W[fo];B[fn];W[om]
;B[nd];W[me];B[md]C[Ok empty triangle and its bad but what to play? What plan? ];W[le];B[kd];W[ke];B[je];W[jf]
;B[jg];W[if];B[ie];W[lf];B[kg];W[no];B[op];W[np]
;B[pj];W[oj];B[qj];W[hm];B[ik];W[il];B[ai];W[ah]
;B[aj];W[ps];B[qs];W[os];B[qr];W[ao];B[an];W[oq]
;B[pp];W[on];B[pn];W[ea];B[fa];W[da];B[oe];W[mk]
;B[oo];W[];B[])
(;FF[4]GM[1]SZ[19]CA[UTF-8]AP[Igowin iPhone:1.1]PB[User]BR[7 Kyu]HA[0]PW[Igowin Pro]WR[5 Kyu]KM[6.5]DT[2015-04-16]RU[Japanese]GN[sempre meglio ];B[pd];W[cq];B[pq];W[dc];B[qk];W[jq];B[jd]C[Is this the proper way to develop? ];W[nq]
;B[po]C[Is this necessary or tenuki? ];W[lp];B[fc];W[ed];B[fd];W[ee];B[qg]C[I Belive this is a waste of time but i hate invasions and tried to strenghten my position. Where to play instead? ];W[ok]
;B[mc]C[Same as before. ];W[pi];B[qi];W[ph];B[qh];W[gp];B[pl];W[ol]
;B[cj]C[Are this invasion correct? ];W[pm];B[qm];W[pk];B[ql];W[ch];B[cm]C[A base... ];W[co]
;B[dn];W[do];B[en];W[gn];B[fm]C[Is shape but i m overconcentrated.. Or not? ];W[gm];B[gl];W[hl]
;B[el];W[gk];B[fl];W[hk];B[fe];W[ff];B[gf];W[fg]
;B[gg];W[fh];B[gh];W[fi];B[gi];W[of]C[A blunder i Belive.. Isn't it? ];B[fj];W[gj]
;B[fk];W[ej];B[ei];W[eh];B[di];W[dh];B[ci];W[bi]
;B[bj];W[bh];B[ec];W[db];B[eb];W[dd];B[eo];W[ep]
;B[bn]C[I Belive its a mistake but where to play? ];W[bo];B[cn];W[pg];B[pf];W[og];B[pe];W[ne]
;B[kf]C[Is this way the correct developement? Maybe something like n15? ];W[mg];B[lg];W[mh];B[lh];W[li];B[ki];W[kj]
;B[lj];W[mi];B[jj];W[kk];B[jh];W[jk];B[ij];W[hi]
;B[hj];W[ii];B[ji];W[or];B[pr];W[fo];B[fn];W[om]
;B[nd];W[me];B[md]C[Ok empty triangle and its bad but what to play? What plan? ];W[le];B[kd];W[ke];B[je];W[jf]
;B[jg];W[if];B[ie];W[lf];B[kg];W[no];B[op];W[np]
;B[pj];W[oj];B[qj];W[hm];B[ik];W[il];B[ai];W[ah]
;B[aj];W[ps];B[qs];W[os];B[qr];W[ao];B[an];W[oq]
;B[pp];W[on];B[pn];W[ea];B[fa];W[da];B[oe];W[mk]
;B[oo];W[];B[])
at L4 would've been my play. I think that's more in keeping with what the bottom part of the Low Chinese Opening is aiming for. You can probably leave that exchange in sente and then play on the top at K16. You can also aim at a similar shoulder-hit on that corner with the white 3-3 stone too.
at O3 - largely settling his group and immobilizing you on the bottom side. In that situation I prefer
at P5 - the mutual knights-move position between white and black. You both have competing frameworks in this area, so don't settle on a move that walls you off when you can lean on white's framework and push him back instead!
seemed a bit heavy. Does F6 or D12 instead helps black more?