That is really cool with the lighting complementing the mood the dragon gives off. Very nice though i am sorry i can't help you with a name for him cause i too struggle with names for all of my characters too. Very well done!
It will be awesome to see the reference sheet of this dragon if you will make on! ;D It looks already like an awesome character with this little head portrait! I especially love the fins and the overall design of the head! <3
I like this style of artwork. Very conservative use of color and lighting, but still plenty to give shape and form to the dragon. It really gives the feeling that he (she?) is so dark that he absorbs the light. Kind of an eerie effect, and very cool.
Does he really have spikes coming from the front of his neck? That's different. XD