CGTrader has just started the Digital Art Competition with $60,000 prize pool, which calls all CG artists (both 2D and 3D)!
Submit your images to six very broad categories, like: Object Illustration or Environment Concept. There are no strict requirements, and artworks do not have to be created exclusively for the competition, so you can enter your best and favorite works!
The competition offers massive exposure to artists in CGtrader's 1.2M+ user community, all submissions will also have the chance to win the Public Award.
For more detailed requirements visit the competition page: https://www.cgtrader.com/digital-art-competition