A tougher application process is probably a good idea.

Just me, but I love the idea of the prompts. It gives characters that are usually introverted something to work with, and you can give players the option to take prompts how they wish. Like a prompt for 'heart' could be taken as a shape, a feeling of love...or whatever.

I think two shorter rather than one long, so that you can get a better feel for how the mun deals with a couple of different situations.