Hey ridwan, I like your painting, but I think there are some things you could do to improve things a bit. The first thing you need to do is think more clearly about the structure of the wings. You used human anatomy for some of the body, and animal anatomy for the rest. So, you need to use anatomical information from both human and animal anatomy to construct your dragon. I did a quick sketch to show you how you can do this, I hope this helps :)