Interesting
Could become a really cool graphic novel, without a doubt. Some minor changes to the piece would be nice.
First off, it looks a bit rushed. The brush strokes are clearly visible, and the shading looks a bit off-beat. The necks of both characters look fairly... wrinkly. They just look a bit off, like you got the shading somewhat wrong. The character that's in profile has a somewhat odd-looking nose as well.
I like the coloring, though I think you coudl\ve done some more work on the background.