Dalin Dragon

(I need to remake this) Dalin is a large scary dragon but his nice and friendly toward humans. He’s doing usually his mission to kill bad dragons who harm humans or the nature. He spies red-purple fire and his eyes lights in the dark. He’s strict and a bit cold but kind. It’s a fantasy world with magic. The humans was the first who studied and mastered magic and usually every human wears a bracelet with a jewel. The jewel color is based by the magic.