Music Drawing - Wolf & Raven

Hey guys and ladies, there is a tribute to one of my favourite bands, Sonata Arctica, based on his song, "Wolf & Raven", but with elements from other songs (just like "Fullmoon"). Truly I concept this art to be a shirt (you can see the vectorized versions above), but I want to do something more elaborated. I get some elements from vector banks on web, just like the moon itself and the trees on forest.
So, if you like it or not, drop your opinion on comments, I glad to know what you think. Thank you all!