^Basically what they said.
To add, I remember I tried to get a pokemorphs rp going. I was really hyped for it, then I slowed down with the posting because all I had was fluff basically. No one has even looked at the topic since. That drives me crazy because I have so many ideas going to waste and floating around in my mind.
I'll take any rp that is on something I know about, that is literate and not required to write a short book on your posts or form. Sometimes I go a bit less specific to leave it to the reader's imagination. Some people don't like that, and I respect that. Still, something that's overly specific is something that turns me away.
So to sum it up, I want an rp that:
1. Progresses
2. Something that I know/ that anyone can pick up easily (not required)
3. Detailed but not overly specific
4. Does not require you to write a short book on every post.
5. Literate (wanted the most)
I know this seems like a bit much but as long as it's interesting, I can work with it.