You went so far as to edit the whole thing! Thank you.
So in order of comments...
Did you suggest the kosumi because the knight's move was bad shape and can be exploited? I personally prefer the keima in this case but that might be a weakness I have to iron out.
I didn't play C17 kosumi because I felt this left me open to counterattack on the upper side.
I was confident I could handle the cut at F16 if it came, but nevertheless I should have taken the opportunity to connect directly. It's clear now that this move is better. "No weak groups" indeed.
I guess what you meant when you highlighted the stones during the running fight was that I was pushing the cart and hurting my own stones. I was too eager to get my wall and settled the position in a bad way, I guess.
Any ideas on how to handle Black in the upper-right? There has to be a much better way than what I tried.
Thanks again.
, versus if you had big-wedged on 
.
