Nice, I love when people take traditional concepts and reinvent them. You call it a Troll, but gave it a twist I've never see before, and I think it is worthy of being labeled as a completely new Unique race. Also your detail is perfect. Nothing feels like it was thrown in just to fill in space, really looks like you spent just as much time on the environment as you did the troll, I can almost hear the water lapping against him and feel the steamy heat rising up from it. Man so much detail here, from ragged fingernails, skin texture, hair density, veins, and facial expression. Even more it all melds so well together, I like your taste in colors, shading, and lighting. Total Realism!