I'm not quite sure what it is, but something about this picture seems much more '3d-ish' than the others. It might be the angle or maybe the extended background but either way, I love it! The scales look fantastic, like they're actually made of cooling lava, and the foggy atmosphere from the actual lava sets the scene quite nicely. I've never seen a dragon, or any creature for that matter, whose eye-color was a solid shade, especially not the same shade as their body! I think it adds a sense of immaturity to the dragon which fits as it is only a pup. Overall I really like this picture. Nicely Done!