You have a pretty nicely developed technique and painting style.
I like the composition and all contrasts. Forms you depicted here are pretty convincing. And you did a really good job with Hayao's face - I have to give you that.
However, upon closer inspection I find the anatomy kinda wanky. Both Satsuki's and Hayao's legs are way shorter than they are supposed to be. It felt like you just ran into the bottom of the canvas when initially planning the composition and instead of extending it or moving the lines up, just forced the legs to end at the bottom of the screen. By that same error Satsuki's shoulders feel too wide in comparison as well.
Wolf's legs also feel like two stumps protruding from where his chest is supposed to be - there's a third leg in the background behind them as well as supposedly his tail, but the fourth is nowhere to be found :s
The robit's left hand also feels out of place just poking through some random crack between characters - you didn't ahve to stuff it in the painting just because the character has two of them :p Also: the princess' mouth looks like a lipless slit that was cut through her face with a knife as if through a mask. That one confused me the most since you did quite a decent job with other characters faces.
Anyway Cheers m8 and gl.