Robin design

I've got a colored version coming.

I'm trying so hard to make my line art more solid, by sketching lighter and then using a 4b and HB pencil for the finished penciling.


Also, I'm trying to draw a more definitive Robin, or rather, maintain one solid design.

Anyway. Hope you dig it, and as always anyone with some critiques and tips harsh or good, constructive or not...feel the hell free. I need them.