I did some Redlines for you, the problem I see most is {I don't know if it's done on purpose} but you seem to be trying to mix a Eastern style with a European style. That's not physically possible. Because of how different both are, it is hard to pull off and make it seem to right to the eye. The Neck of the Dragon is too long for a European style, but the body is too short and compact for that of a Eastern. I suggest studying dog or cat paws, or any other kind of lizard's paws for an idea of claws, I've never really done a pose in a laying position like this one, but Dogs and and such are good to see how the back legs and front should look like. Another good way to see how the Dragon front limb works, is to simply look at your arms, a dragon's arm bends the way a humans does, and if you look at the back leg of a human, there is "Three" parts. The thigh muscle, the calf of the leg, and then the foot. I noticed this as a good way to invision the back leg of a dragon, deer are a good way to see it as well, and horses.
I really like the main {I guess its fur? } on it's neck, its very nice ^^ With the wing, very good design, try toning it up a bit with muscles, if this dragon flies a lot, it will have muscles. The "Fingers" of the wing seem to be all one size, the first wing bone at the end is fine, the one after that should be longer, and then the next should be shorter, and so on and so forth. A dragon has a chest, it needs to be shown that there is a collar bone, and the huge breast bone to support the wings. I like the tail and the ear though, very nice! Keep it up!
