All and all, a great piece of work! My only suggestion is to tone down the ears more. These look a little to much like the way World o Warcraft is always trying to throw demi-horns on them. It should be a more natural curve beyon what humans have but not to where they will poke someone's eye out. Ask yourself "What was the natural evolution (in a fantastical and magical world way, of course) that made them develop in this way?"