I think this looks fairly okay, but I think there are a few things that could be improved. First, The secondary texture could have a bit more going on, like maybe a simple wood pattern. Second, the crack pattern shouldn't be all one thickness, have it be more of a varying thickness, like something you'd see on the old Boneyard skin. Speaking of boneyard, I'd say a custom wear that would show the marrow underneath would make things even better.

Looks good, i want it.

I like it, clean. Is there a way to spice up the flat black, however? Maybe give it a texture like Bone Marrow?

This is cool