This is another great idea from Grow Creative-- just layering the paint around a central object. I ended up having to darken my paint color by adding black because I wasn't adding any depth with the purple I was using-- it may also be the crappy paper I was using.
It's a little sloppy. I wish I would have been more patient and taken the time to paint each layer carefully. I also splattered on some white paint with my toothbrush, just because. This may be a good project to try some gold leaf on or something...just a thought.