You should, a little work with art (to make it even prettier) and a cool UI would make it a perfect mobile game.
I plan on doing just that although i have no idea how to improve the art.
That is a real challenge. Maybe play with post processing a little more, or make them more squashy. But I would play this with this art, it is cool already.
Thanks again, I'll look into post-processing and some simple squash animations.