Neat dragon head! One thing really strikes me though, you need to widen the head in the area of the eyes. It looks like your dragon can’t really see forward due to the current anatomy. Take a look at the head of a T-Rex or alligator for reference. I would also reposition the horns upwards, since they may obstruct a huge area of vision where they are now. Oh yeah, and a dragons body is supposedly completely covered in scales, nose to tip of tail, so you would not be able to see any veins and skin. Keep posting!
derkomai: I agree, “Drakan” was great and the dragons in “Reign of Fire” are the best I have seen in a movie yet (not really dragons, but a cross between dragons and wyverns though, since they did not have 4 limbs and extra wings, but could breathe fire). Please do share your dragon sketches with us! You do seem to have a thing for these mythical creatures and I would love to see our take on them.