well first off I like the colors happening in the background.
I think from this example you need to focus more on human anatomy. draw from life, photos, and artist you like.
secondly, your perspective is way off for the angle you are shooting for. this can improve with more knowledge of anatomy and how it plays in space.
third, drop the text. it makes the piece loose alot of depth. or if you do use text try to incorporate it more with the feeling of the piece.
Do not meddle in the affairs of dragons because, to them, you are crunchy and taste good with ketchup.