Love the idea behind these but there's a few things you need to watch out for-- the anatomy of the character, especially when it comes to keeping everything in proportion to one another. There's a distinct lack of hands and feet and the arms themselves just seemed to be connected to his coat. I would suggest drawing the figure whole before adding clothing if you don't already. Also, I have to ask how tall he is. In comparison to the rockets and trees, he's pretty massive. If this is intentional, kudos, if not, something needs to be scaled differently. Love the sense of action, though. It's definitely dynamic! And your colour choices are fantastic. :)