Tops your SA + Mandrew. Pikachu blends in fairly well, though I'd think kinda putting a yellow dimmed layer over him might help him blend in more. Focus on the red on his cheeks might be nice too. And can I ask what the heck that blue thing around his neck is?

not too bad dude. it would look better if you brighten the background up some. also, try setting the C4D to a different setting. try something like Screen or Linear Dodge. adding a light source and some shadowing will really help the sig out too.

pretty good stuff though.