Some cool lineart and composition you've got going on here! It also seems like you've got some ideas to flesh out a story or two about this guy, so hopefully you revisit this at least a couple more times for some good practice. :P
In therms of art, the only thing about this drawing that seems a little bit off is the fact that Korbin and his Crow's have a bit of moonlight shining on their highlights, but the buildings in the back do not.
Seems like your stylistic choice was to have the characters be more detailed as they are closer to camera, and to have the buildings in the back a bit more simplified due to the distance away FROM the camera.
Even with this tactic in mind, I'm sure adding a small amount of moonshine (not the drink!) to the buildings would help make everything fit in with the light sources you've chosen.
Great work all around though, so I hope you keep practicing and get even better! :)