The setup is very clear. And you've got a nice listing for kinks you're interested in. I agree with
@Lady Irony that the "Don't ghost" warning is superfluous. People are going to do that regardless of your thread warning, so, it's best not to focus on it or even worry about it. Besides, it's kind of a given. "Don't ghost me, I don't like it" is pretty obvious. I'd be surprised at the RT that
asked for ghosting.
The male x multiple females is not very popular. If you take a look at threads in the General Discussion, female harem type stories are listed as a big dislike in a lot of "things you dislike" threads. I know yours is stated to be different but in a way, wanting more indepth relationships between characters is worse. The biggest complaint I see regarding this is how much work is expected from the partner writing the multiple characters. I don't know how you alleviate that burden, just something you should be aware of.
Another thing that sometimes turns people away is stock characters. It's a lot of homework you're expecting of your partner to put that out there and then asking them to choose one. If it were me, I wouldn't mention that I had premade characters. I'd take all that out and keep it private. Then once I get to writing with someone, I'd use whichever character fit best or whichever one I felt like playing. And I'd put in bits and pieces of that backstory in the rp as it came up or was needed, or if my partner asked a specific question about them, I'd have can answer ready. Forcing potential partners to read up on a character they don't care about yet is probably going to hinder the amount of response you get.
You'd be better served keeping your character sheets to yourself and listing a couple of plot ideas where the characters would fit instead.
Otherwise, it seems a pretty alright thread.