CGTrader, the world's largest database of 3D models and CG community has introduced the Digital Art Competition, which welcomes all CG artists (both 2D and 3D):
https://www.cgtrader.com/digital-art-competition!
You can enter with up to three artworks each of the six categories. All submissions will also have the chance to achieve the Public Award.
The CGTrader Digital Art Competition offers artists exposure in our 1.2M+ user community and the opportunity to win prizes valued over $60,000.
There are no hard requirements, and artworks do not have to be created exclusively for the competition, so feel free to show everyone your best and favourite works. For more details, visit the competition page and be sure to check out the Categories & Prizes section!