First of all, what's the resolution of the game? The sprite suggests a 320 game, but the portrait is 200 pixels tall which is pretty big even for a 640 game.
Regarding the drawings, both are a bit on the messy side. Even cartoony graphics should follow basic anatomy.
The portrait is very flat, the shading is barely noticeable and all over the place. It looks like you were applying lots of burning and dodging without really knowing what you're doing.
As for drawing somebody wearing a cloak, draw them without the cloak first, then add it in a new layer. That way you won't have to guess at its form.
I recommend using photos as references or even better, tracing over them.