Free Online Creative Writing Workshop

I've started a website geared towards improving your fiction writing skills. It is free and ad-free. Here's how it works (as of now):

-I will post assignments probably on a bi-weekly basis, and writers can only post work that specifically responds to those assignments.

-Pieces are automatically posted as forum topics, so it is a jiff for other members to post their thoughts on your piece.

In theory, the fact that all members are working on the same assignment should make members more interested and engaged in other people's pieces. After thinking about and working through the constraints of the assignment, they will be more interested in how other writers tackled the assigned parameters.

I started to actively seek members about 5 days ago, and right now I only have about 20 members and there are like five pieces posted.

If your interested, have a look - the url is whativefound.com

Also I'm eager to hear if anyone has any advise on what I could do to make the site better.