Just my own opinion and I am not trying to pick a fight with the talented previous posters...

Sure this is do-able, I would use a combination of normal and displacement maps along with some good modeling. I think Teyon showed that the wings can be rigged from his own creation (can't recall the name however).

There are certain limitations in Poser to whatever you want to create, but as a whole I believe this kind of creation can happen. Poser rigging used to slow down my creation process but that is happening less and less now.

Comitted to excellence through art.