The Seven Deadly Sins [Prompt Edition]- JUDGING IN PROGRESS!

Okay, so I think I've finished one! Yay! :D Anyways, I wanted to ask before I post it, what is the difference between "Prompt" and "Chosen Prompt" on the application? And does our entry have to be particularly dark themed? Mine is Alice in Wonderland and it's rather bright and colorful, but I think it still represents the sin I chose in context :)