Blue dragons are the second most powerful of the classic chromatic dragons. They are physically distinguished by the single large horns protruding from their heads and also by their ears, which are rather large and frilled. The tail is thick and bumpy, like that of a caterpillar. The wings are more pronounced than most other species'. They smell like ozone or sand.
They are more likely to be mocking and manipulative than outrightly cruel or murderous to 'lesser' creatures, aided greatly by their natural talents for hallucination. They are infamous for tricking desert travelers into drinking sand or going miles out of their way to avoid nonexistent dust basins.
Blue dragons tend to be carnivorous though they will eat plants on occasion. While almost anything is potential food, a blue dragon prefers camels above all else. They are enemies of brass dragons.
Blue dragons are orderly creatures, and are unusual for chromatics in that they keep fairly well-ordered, hierarchical societies. ~Excerpt from the Draconomicon
It seems I am going through the whole color spectrum, I kinda like how the blue contrasts with his rocky surroundings. Done in CS3 in about twelve hours