I like the general shapes, but I feel like your sculpt and your material are opposing each other.
Sculpt wise, it looks organic, like leathery skin.
Your material though speaks of rock.
If this is going to a be a rock troll character, design would dictate that the surface needs to read as rock and not leathery.
As well, the texturing seems too uniform. My eyes aren't being led to focus on any particular area. The face is hard to read because of this uniformity issue as well.
Right now, the quickest fix would be to retexture the character as an organic surface given the normals already, but if you're willing, the character could use a different sculpt.
Once you get to texturing, I'd encourage you to do a value block-in first to determine where you want your focal points to be. For example, lightening the face a little lighter than the rest of the body to bring focus to it, and provide clear contrast.
Replies
Sculpt wise, it looks organic, like leathery skin.
Your material though speaks of rock.
If this is going to a be a rock troll character, design would dictate that the surface needs to read as rock and not leathery.
As well, the texturing seems too uniform. My eyes aren't being led to focus on any particular area. The face is hard to read because of this uniformity issue as well.
Right now, the quickest fix would be to retexture the character as an organic surface given the normals already, but if you're willing, the character could use a different sculpt.