Alright, not bad. However your underlying structure could be improved a bit. You seem to have only used 1 tool, so it all looks similar. You need defining shapes, sharp and smooth areas, detailed and not so detailed to build the character. Perhaps experimenting with alphas would help you. You have a very tiny head, really large jaw and horns right out of the back of the head and no room for the neck that will be required to hold it up. Now all that said, doesn’t mean you didn’t do what you set out to do. You however did ask for some feedback. Do a search for ‘dragon’ on the forum and you will see some amazing work that might show what I’m suggesting. You will find good and bad examples, but if you can see it, your work will take a large leap forward.
Welcome to you, game_killer and to Zpike. It’s a great time to learn, while your minds still want to. 