We just finished grayboxing our first level this week! We're aiming to have six levels in the finished game each titled (at least internally) after the colors of the rainbow (we're pretending Indigo doesn't exist).  

This is the second step we take when designing levels, we start with a whiteboard layout of what the world is and then our designer goes ahead and actually blocks out the world. We'll be sharing our white board pics in the future so you can see how Paradise 252-B is born!