you used my most of my pallette from WF bg tiling thingie, and I think you adapted some of the problems i had with it. It's a tad boring, epsc. for a mockup, not colorfull enough and not enough contrast, spice it up a tad! Also, i think you could ad a bit more depth to the far bg, and generally just add some design elements on the platforms/ near house. As for the sprites, the harsh shading of the hero's (i persume?) chest suggests boobs, and there's some colorwasting going on on his pants (dunno if you care but since this is an gba mockup'n all). Fool's edit on the thug is sexy, tho i don't for the face on neither versions, it just doesn't look like a bad guy.