Emerald Akorrus Dragon

A dragon of "Da Mamatka Viea En Da Nurn En Ara," The Five Nations of the Realm of Ara. An Akorrus dragon, (the eastern nation) to be exact. Male - a female would have an additional 'central' horn on the bridge of her muzzle. Tried a few different colours, but green came out the best.
Opinions? (Please, ignore the trashy background. I forgot to layer it properly after scanning him in!)
...Oh yes, the dragon's name is Kerieba.