I am personally a huge fan of the Gringotts dragon, which is sort of random, but I just love him so I decided to do a little doodling of him! I headcannon that he had iridescent blue scales at one point but they all rotted away in the darkness of Gringotts, so I drew him with a smattering of blue scales on his leathery pink skin. I believe he is cannonically blind (or half blind, not sure) from the darkness in Gringotts so I just have him cloudy blue eyes with no pupils. He is also depicted with bloody scars and chains on his neck. I think my drawing is pretty accurate but let me know if I missed anything :)