Alright, let me give you some tips on how to get the most out of your rp posts and short stories... 1. An eye for detail: The one thing many people think when they look at a casual or advanced post's length is "How did they do that?!" The answer, put in detail. For example, a free roleplayer's post may look something like this: 'Tom walked down the hall'. Kind of boring isn't it? Especially if there's something really exciting going on. So describe the action! Describe how Tom feels and his condition! What state is the hall way in? The result: 'Tom's feet pounded against the bloody floor of the hallway as he ran away from the mercernaries and their guns. Bullets whizzed past him and splintered the walls. Tom howled in agony as a bullet slammed into his arm.' Now that is a post that would excite the reader!
WARNING: Don't put too much detail! Too much will make it boring. Don't write in the style of Moby Dick.