Here's a list of stock artists I highly reccomend:
[link] A 3d stock artist with many high quality images, easy to use, and with varied subject matter

[link] A stock artist with about 700 images of nature, objects, people, animals, ruins, landscapes and everything in between

[link] A varied stock artist. He does 3d renders, landscapes, animals and people, and much more.

[link] Another great stock artist. She does stock of people, 3d landscapes, animals, plants, insects, objects and a lot more


Rules for stock usage:

1. You may use my stock for noncommercial images posted on dA if you leave a comment on the stock image with a link to your image, and have a link in your artist comments to the stock you used

2. If you want to use my stock outside of dA or use it for a commercial purpose, send me a note first, I'll probably say yes.

3. No reposting my stock with no, or extremely minor alterations (ex. putting a filter on it) and calling it your own.

I will try to favorite all deviations made with my stock, but this requires knowing about their existence, so leave me a link.

If you have any requests, leave a comment or send me a note and I'll see what I can do