I think I played fairly well in this matchup. Started as a KID which I've been trying to stick to for my d4 play. There was enough early trades that I thought it would end up being a boring draw but it got interesting for a bit at the end.
32. Nb3 looks like a bad plan. Qb3 followed by Rc1 and N-f1-e3-f5 looks a lot better for White.
Good game by Black.
13. Why would he take with the pawn rather than the queen and ruin his structure?
Judging by his play later it was to give a file his rooks could try and attack on. But I agree that taking with the queen, that's what I would have done.