Although its weird how they give almost no rules or guidelines for the submissions themselves
Beware artists, submitting your work to this competition gives them the exclusive rights and ownership to your submission, even if it isn't selected as a winner. That means as soon as you submit something they have the full right to do whatever they want with it (for example, turning it into an anime and denying you any credit or royalties). They can also legally deny you the freedom to do anything with it yourself. This may not be a concern for some of you, but you should know.