Honestly. Formatting and design are one thing, a nice role play with effort put into presentation shows that yiy made a effort and is a plus point..

Also, advertise right! Depends what your RP is. But you have to think how you sell the idea. Launching requires more than just posting it up, gotta stand out as alot of other people want your players. Also same as above. Make a good impression, you have seconds to grab em, so make sure no major spelling errors etc.

We had to put alot of effort in behind the scenes pre launch, not to scare you just remember, if your ready before, you gonna have alot better chance of a successful launch than playing catch up :)