Wow, holy crap. By the time I come back, he looks about a thousand times more epic.
...And he's already himself, you know.
Seriously, though. Those sprites look amazing. Anyway, I...actually tried to edit them a bit, at least for accuracy.
It turned out...all right, I guess, but not as good as the one already there. Mainly because the one already there is freaking awesome, animated , and freaking awesome. Thusly, at least, you should use this reference to maybe fix a few things:
Definitely the best reference out there. It's the pixel art from the credits of Trilby's Notes, the biggest Tall Man picture Yahtzee ever put in his games.
I keep seeing buttons on coats, but he only really has those four, and they aren't the shiny kind and such. The top of the coat isn't so much a collar (Not sure what to call it in clothing terms), but a suit.
...
Just something to keep in mind, I guess. Just a few accuracy edits, and he'll be perfect.
As to the twisting, it may not fit his character, or what have you, but the animation is beautiful.