Whistler - The Psychic Bird-Man (WIP)

Hello
This is my current D&D character, Whistler, that I decided to draw for no reason whatsoever. I plan to draw the rest of the party and color them but this is my character so I started with him (and Im too lazy to color this rn). He's a Psychic Kenku who was once a member of a relatively devious thieve's guild before he decided to abandon the guild to study magic. 

Please comment if you can. I would really appreciate it.
Oh, and also, if anyone can give me any tips on how to color/line this image, that would be great. I am complete rubbish when it comes to coloring and lineing drawings.

Thanks! ^_^