For this community, the writing focuses on following the daily prompt as much as possible -- the five-minute freewrite prompt for today, for example, is "ready." This community is not so much for pre-existing work. HOWEVER, if you search in communities, there are several that take more extended work. Scholar and Scribe come to mind.
ALSO, bear in mind: publication here means that there is NO CHANCE of your posted work being picked up by the majority of publishers if you ever want to go the traditional route in both books and magazines. Everyone is looking for original work only. If you think that someday your books have a chance at that kind of big-time recognition, be thoughtful where you spread them out online.