The game's pretty fun, and the animations are really good!
I do have two balance things I'd suggest, though:
1. If a girl triggers the "trying to bust because she's horny" thing, it should probably only trigger if she's above a 15 or 16, or should automatically keep going until she busts. I've had a LOT of times where I had something like a 17, and my opponent "tried to bust" into a 20 and stood on it.
2. Depending on how "fair" you want it to be, the two girls should take turns being the first to hit and stand. By making the opponent ALWAYS act the way a dealer would (they hit/stand second), it puts the player at a firm disadvantage. If that's intentional, that's all good. Kinda up to you how "fair" you want the game to be.