Wow and double Wow. . . or Wow Wow!
I'm blown away by your foray into the expressionistic. Those drawings of that nature are sensational. They look so sure, my dear Mister +. (There's experimental stuff in there as well and that's cool as well. But I'm talking right now specifically about your more polished looking stuff.)
It's almost as if your personal moving line about in your sketchbook locked in to a style in which you have ennobled the sketchy line into a finished personal voice. You can see where it can express many different things, from gorgeous to edgy. And sometimes the discovery of what we're saying comes out on its own and surprises us.
And it seems to really suit you on whatever level you have grabbed it. They all work, from Klimpt to Schiele to Lautrec (who in my opinion is borderline expressionistic).
Anyway, the cool bit is do your thing, look confident in your marks, and you own it. You're there enough times now to show it's happening.
Bravo, lad!
"Not a bit is wasted and the best is yet to come. . ." -- remembered from a dream