Yeah... Um... Dragon Tamer wise, this is the dragon known in legends as "The Sea King".
But yes, he is a Lugia from Pokemon. Don't question it, just look at the pictures:
Oh! How about an ocean shot!
The Sea King's species were hunted down to extinction, save for himself and his brother. Although, there were tales of a gateway to another world associated with this species.
Do remember to visit my other MOCs associated with Dragon Tamer. You can find links to them here.