"Don't be scared little charmander. I'm just like you! See? Neither of us are wearing any pants! That's right... Just a little closer..."
I like the toning and shading and stuff. The cave has a nice three-dimensional quality to it. Be careful with your light sources though. Charmander's tail seems like it would be the primary light source in this instance, but judging by his back and the back of his head, the wall is reflecting more light than the flame itself. That or Ash/Red/Random Pokemon Trainer's face is giving off light. Either way, charmander's back shouldn't be in shadow. Also, the fire should be giving off a yellow or orange light. The walls of the cave look like you accounted for that there (I can see the streaks of color from the light of the fire) but the human doesn't have any colored light on him and I would expect to see some rim lighting.