I discovered these nice challenges on Wirestock. I shall see how well I can place in them. Got these entries for a picture that is supposed to mix both Oppenheimer and Barbie elements.
All are done using Midjourney.
A chance of winning may be small with 750+ registered works to date and plenty of time still left. But the platform looks like it may be a great window into selling AI-generated content. I wish to test it!