I wasn't sure if this was the right place to ask this or not, sorry in advance if it wasn't.

Resently, I took photos of quite a few fall leaves, flowers, and seed pods and then clean renderd them. (they are on transparent .png backgrounds and they are all high rez, orginal photographs) Figured they would be useful to 2d artist. But anyways, where IS the proper place to put things of this nature? And, is there anything I need to be aware of? (sometimes .png file backgrounds look black after an upload.)

Thanks for any help!