I don't recognize those, sorry :(  I checked Christmas giveaways from Renderosity, Daz and FarieWylde going back to 2005 and didn't see it.  And I tried searching Whatever3D and Myxtic Nights and can't find any free textures for the Lost Realms tail.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi