Can we assume for a moment i am extremely new and break some of this down? From watching the clip once the main points i picked up were:
1) No TD's
2) Awful timing when you are on the floor (at one point a 3H+K thrown very late and nowhere far enough away to really punish a wakeup kick)
3) No SS, either into TD or into P stun (leading to a possible CB combo)
4) No real combos at all, but didnt bait the hold and then punish it.
4a) Whereas you did, constantly, and they must of thrown 8+ whiffed holds in the 2nd round alone.
After watching it again also:
5) Obvious holding of block, at least twice you saw they were blocking and just ran up to them and threw.
6) The countdown of round 1 they walked in and tried to p as the timer reached 0 and you SSP, then round 3 they do the exact same thing.
7) No use of ranged tools, and Mila has some great ones (in fact the only 4H+K was right NEXT to you)
8) Over-reliance on mid in round 3.
9) 3pp not really followed up well> 66t, charged 7k, maybe 3H+K into 2T. Mila has so many options from there, and those times you were next to the wall...
I did like that throw though, and they did TRY to go for a few other throws. Bad as it was i could kind of see what they were going for most of the time, the worst mistakes i thought were with distancing and unfamiliarity with the character.