Your art looks vibrant and inspired. Your not bad at this. The only thing that bothers me is the lack of shading on your wall hanging sprite; It doesn't have the same style as the rest of your sprite sheet. Also, you may want to move the mapping of that wall sprite left by 4 pixels. I'll look even better, trust me. By the looks of this, I actually can't wait for a new release. Good job, Xero.