First off your work looks great! I love the texturing job on venom.

The only thing I see is that it seems like the light source behind Venom should be stronger than the one in front of him. It looks like he's transiting from a bright area to a darker one (foward). Maybe add in a stronger source of light (not real lights per se but overhead lights or something) from the front or play with the lights lighting Venom to give him a dimmer front and more of a backlit look.

anyway Keep up the great work it looks awesome!

Cheers!