I'm eventually going to learn LoTR Elvish, it sounds so southing and relaxing especially Arwens voice in LoTR.
You'll also be using ambient music and delay effect in your background whenever you speak?

I'd rather go for a historical language if I were you. Don't they say Finnish resembles Elven?

Dragon language... Nowhere near enough vocabulary to speak it. I wouldn't be surprised if some fan developed some to it at some stage, though. At the moment, it seems to be missing many functional words (particles, pronomins...) especially; they have a few content words though (substantives, adjectives, verbs...). But as far as I know of, we don't really know a thing about its grammar.