Thanks for posting this
10: not a fan, because:
12: you don't have a good extension here. This "armpit hit" feels really painful.
16: Tries for too much. White will end up with too many cutting points.
22 and 42, same exact mistake: This shape is not good. It leaves a double peep.
26: I think you should kick first (c5).
27: This is wrong, it harms your side stones. You should just slide at b4.
36: This isn't right. I'm not sure what's correct, probably just e3 or something like that.
39: This fails to punish 36. You can just f2; White must take gote to fix the shape. White at c2 does *not* work.
43: Extremely painful. I'd play elsewhere before returning to these stones.
50: I think white at d10 threatens to kill, or at least ko.
54: I think r6 will probably be sente, after which you can make a nice position on the side. The game move is jealous; you've got a huge framework developing. It's too soon to worry about black's.
55: No, no, no-- a thousand times no. You can't make headway in this game by defending tiny areas in gote. Every time you defend something, it gets *smaller*. You must attack! R9! Make white regret not getting a base. This is easily the worst move from black so far.
58 & 59: too small, surely there must be something bigger than this.
60: Jealous. Black has a tiny area here, you could have a huge area in the lower center. Build your own area! If you reduce his, and he reduces yours, black gains, because white has more to lose. Therefore, you must build your own area and not give him a chance.
61: M18. Don't let white push you around! Or better yet, ignore this! Play in the middle!
70: Right idea, wrong spot. How about L11 or 12? Ask for a really big area, because you never get the entire area you ask for!
71: Nice! But still, I think the middle is better-- it reduces while threatening this invasion.
76: Now I like L10. This center should end up being like 60 points for white.
77: CENTER!
78: CENTER!
79: CENTER!
80: CENTER!
81: Close! Go deeper!
82: Maybe not the point I would have played, but definitely the right idea.
OK, that's enough for right now. I know there's more comments for white; black's mistakes, at least in this part of the game, were less numerous but more severe.