agreed.....
BUT
hmmmm....
idk how to put it....
...
...
well.....
the BG doesnt really fit the stock :S.....
try and make the BG more 'natural' to the render/stock......
'cos ATM....the BG is a 'straight edged modern-abstract-looking C4D' and the dragon is well.....a mythical creature.....but i guess its up to u......just my opinion ;)
also......never be afraid to erase parts of the render......what i mean is that if u were to erase (in a GOOD area) of the wing, u could quite easily betgin to add depth.....
take my current 'gorillaz' sig as an example.......the guy is part of the BG (in a way - as the cloudy sh1t behind him is also in front o' him).....

sorry about the 'harsh' crit. but IMO u seem like the sort that can take it criticism