Here's how it works: You get 4 squares. These squares can be in any shape so long as they are connected. You can go more than once, but you cannot go twice in a row, i.e. you post, someone else posts, then you can add to it again.
If someone forgets with the quality, ask them to fix it or skip them. When the board is full, you will start a new one. I'll start of this one.