Cammy's done quite well, but Reptile could use a lot of work. He looks like a Namekian, not the more raptor-ish appearance he has in Mortal Kombat 9. The posing is off as well. This posing makes it highly unlikely that Cammy could escape. A more neutral confrontation would have added to the believability of the piece.
The shading and the colouration is excellent, but in general, the piece lacks much detail, relying on broad strokes of colour rather then any finky work. An alternate costume may have been used to provide more to work it.