[Rez]

this picture in two steps.

jack up contrast.

cutout filter.

congrats on making it passable (i guess), but design-wise it's crap. it's the photographic equivalent of taking pictures of your feet.

actually, from an aesthetic perspective it's also incredibly flat. it's what that guy said in the vector thread. "making a picture fake"
it's actualy an ignorant comment in the context of the thread, but it applies here.
there's arent any suggestions, just get a different idea altogether about this... or try drawing it in the style you have in mind so that it doesn't look so lazily processed.