I feel like the creature's chest looks like a really buff human, and not a dragon. If you're going to make the lower jaw bigger than its snout, maybe push the shapes a little more to make it look intentional. I also think you started going too high poly before getting a solid great shape. Keep it up!!
Maybe something like this. Right now your dragon has an awkwardly big lower jaw. But if you leaned into that and made the jaw stick out, and gave the front of his mouth a planar design, I think it would be really cool. Maybe ignore my advice about dropping sub divisions, but I feel your anatomy should have been worked on a little more before adding sub-divs and doing details such as scales.
Looking good. Since you've upped the hands and now have the wings in to show proportions and stuff, I would maybe take another look at the legs. They look quite small now compared to the rest of him. Remember he's going to push off the ground with these so they have to be strong enough to give him some distance from the ground. Also, I assume you're not going to rig this? If you are I would definitely spread the wings and arms out to make rigging and skinning easier