Hellboy sketch - better

Okay, here's a better version of the Hellboy pic I've been thinking about. I've had this sketch finished for a couple of days, but I've been grumping around with some of the details. Hopefully, when all is said and done, we'll have a robust, fleshy-looking HB in a full environment with moody atmosphere. You don't see too many backgrounds from the D, so let's hope this one actually comes to fruition.

Hammer me with critiques, comments and suggestions on this one! I've been looking at it so long, I feel I can't see it objectively.