Man,...I wish there was an easy Gpose program, would make so many of my ideas easier to describe.
But...I do an unhealthy amount of resource gathering on Google and DA and some 'other' sites for Photos, and sometimes YCHs and finished art.
I dont like using other peoples art...but sometimes you take what you can get if it makes the idea any more clear.
But also make sure the artist knows your not trying to outright copy the image (unlessyouarelol)

It has been something where an artist has made the pose you're looking for in a commission or a YCH and when you can't find a real-life pose it helps.

Agreed with both