I love this picture! The pose is great and the limbs look very natural in that pose. The color scheme is gorgeous and I love the color juxtaposition between his armor and the background! the only thing I can comment on is that I THINK that troll tusks come out of the mouth, as opposed to horn-like near the jaw.
I'm glad you like it, and thanks for the kind words
The only thing I can say on the tusks is that technically they are (or they're supposed to look like) they're coming out of his mouth- just that his mouth is elongated to compensate for the tusks. It seems to vary based on tusk style whether they grow out of the upper jaw or the lower jaw as molars. Drawing them has always been a challenge, and this is how I've seen other (better) artists deal with the odd physiology. Maybe I didn't draw it so well :<