Vision & Originality of this art is very nice. I can see an artist getting tired of drawing Amy's outfit over and over. Surprisingly, Sally's old outfit fits Amy quite well. It's something i didn't know would work.
Detail is very nice. From head to toe, you payed attention to every feature of Amy. The lighting also fits well. I do think Amy's nose is a bit too small and there could be more detail on the Hammer; and MAYBE her bangs could be a bit smaller. Besides that everything else looks excellent.
Overall i think it's a great piece. It defiantly deserves a favorite.