Hello!
I used to be really big into graphic design back in the day (Photoshop CS2) and was a big part of communities like game renders and planet renders. I hope this isn't a violation of any rules as these communities no longer exist - but moreso wondering if there's places out there with resources like these provided, if anyone remembers.
Damn planet renders, talk about flashbacks. Deviant art is a pretty solid recourse for PS and place you can upload images of your own