The smooth vector art in this doesn't bled well with the pixel figure. The central figure doesn't feel consistent. It comes of as chunky, lumpy and uneven. Shading is simplistic and plain. Dithering a method I like to use a lot. Gradating the edges with different shades is another option. Figuring out how you want to make shading your own takes a lot of experimentation. It took me forever to start getting mine. Hopefully this helps! Keep creating.