It's a good start but I'm not too thrilled with the feet. Also, if I were you I'd exaggerate the proportions more. Expand the forearms (think Popeye) and hands, generally lengthen the arms, bulk up the shoulders, thicken the neck, and hunch the spine a little. Make that nose even larger and more bulbous. Generally add bulk and beat him with the ugly stick. At the moment it looks like you're working from a base human torso.
Here's my advice: imagine what the models looks like in silhouette. If the silhouette doesn't scream "troll!" then you need to rework the proportions and posture. Or think of it this way, if you saw its shadow cast upon a wall, would you think "that's a troll!" or "that's a man with a big nose!"?
Here's my advice: imagine what the models looks like in silhouette. If the silhouette doesn't scream "troll!" then you need to rework the proportions and posture. Or think of it this way, if you saw its shadow cast upon a wall, would you think "that's a troll!" or "that's a man with a big nose!"?