Come on Get Crafty: Coffee Rings?

A couple weeks ago I started fooling around with card making again.  I had this sort of idea of circles colliding but also being undefined, so that's what I was pondering while making this one.

Once again I think I over embellished it.  I think the shading on the edges pulls focus from the circles and reduces their prominence, when really I wanted them to stand more starkly alone in space, like planets.  I have got to stop second guessing myself.