Saw your match against supes, aside from the random f.2 you go into level 3 way too often. If you are going to clash, don't bother going to level 3. You don't use his b.23 reset and you seem to be getting the power punch instead of overhead a lot. You should be a bit more liberal with your b.1 usage, it links into sooo much stuff. Your oki is a bit too jump-based imo , you could do well to use d.1 on wake-up as a meaty.
Don't be afraid to b.2 into double punch either, its a really nice low-overhead mix-up which will stuff a lot of people's responses if done right.
Against Grundy, you know our b.11 is grab immune as is our charge. You can toss those out and they are safe on block. Also any d.1 can be converted into b.1 to trap people. I'm waiting for it to unpause, but you should probably end off combos with venom upper as it gives you soooo much more advantage than body press and ring toss.
You use f.2d into the 3, which is not all that great since grundy has some kind of range on you. Using f.2d 2 will let you be in the sweet spot for a lot of things like command grab and the like. You do make really good use of your backdash, which is awesome to see.
Outside of the lack of frame traps, your Bane isn't all that shabby. A few things wrong on the level of just use this for that and all, your combo enders could be a bit better, as I said the Venom Upper is a godsend. After that MB Double Punch, doing a dash in b.1 would be the best options. I saw you do I think a b.2 into double punch to break the WCC which was excellent.
Good use of normal throws, its nice to see them being used instead of just command throw after command throw. b.1 on block into the normal throw is an almost true link.
Against Doomsday I notice a few things, mainly a wanton use of charge. Tried to super the venom charge, honestly I woulda done the same thing. Lucho power punch again, so sad it isn't safe. 32% in corner damage isn't that much, we do that much without venom for the most part. Still not much use of b.1 I feel like with how good your pressure is, it would make you much more dangerous to use his tech traps. You make good use of double punch, one match would've ended sooner if you did b.23 123 super instead of just b.23 super. The fact that you are doing well and not even using some of his best tools makes me happy we have so much good talent, and I can't imagine the monster you'd become once you get his other aspects down.
All in all, very good games to watch and you did a phenomenal job representing the league. Even still, I can't agree with 4-6 against grundy OR doomsday. Once you find out the full potential of Bane, you may even agree. But while you are still uninitiated on the finer points, hold your opinion with the knowledge that it could all change. I won't say you are wrong, all I'll say is wait until you see all you can be capable of before setting it in stone.