Looking for backgrounds
I am looking for backgrounds to add to my renders (in post processing). Sometimes a single color or a sky is simply not enough.
Mostly for outdoor scenes, or scenes with open windows or doors. I would like to add a mountain view, rocks, sea, a wood,...
All I can find are wallpapers and images which are real world pictures. But these look very odd with a rendered scene.
Does anyone know where to get background images that look good with rendered scenes?