21 Day Creative Exercise

I've decided to start a 21 day creative exercise. It is best explained here. The rules I have set for myself are to spend between 15-30 minutes each day drawing anything I can think of, as long as I don't use any photo references. The reason for this is that sometimes I spend more time looking for the perfect picture of what I want to draw instead of actually drawing.

This is what I came up with for Day 1. I can't tell you what it is, but I think it is something I will revisit later. I think it could be really cool in color.