Art Resources

Aggregators

• Free Illustrations links to a whole bunch of places to get freely usable art
• Old Book Illustrations has just what it sounds like, and these illustrations could be helpful for the right kind of project

Open Source Vectors

• undraw
• illustrations

Artists

I write fantasy novels, which generally have custom painted artwork on the covers. This can get very expensive, especially for an indie publisher. /r/HungryArtists is a good resource for finding artists with a wide variety of styles.

• BeccaChavez has a character art style that would work for a variety of fantasy subjects.
• JackBakerDesign