Hey Akyron, It's a good start and it's coming along but here are few crits that I notice.
The mouth should be longer, dragons tend to have long snouts. Horns are generally used in animals as self defense or offensive damage, but those horns look like he would stab himself more then his opponent. The hind legs, the lower part is way to long, if you compare to a human, think of that part as your foot, and the foot being your toes. Generally, it should be as long as the middle section. Anyways, my quick comments, hope they help
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The mouth should be longer, dragons tend to have long snouts. Horns are generally used in animals as self defense or offensive damage, but those horns look like he would stab himself more then his opponent. The hind legs, the lower part is way to long, if you compare to a human, think of that part as your foot, and the foot being your toes. Generally, it should be as long as the middle section. Anyways, my quick comments, hope they help
Pascal