i like it and if it's a firs attempt it's really good.
I have no artistic ability what so ever, even my pin men would go on strike if they could, but I've challenged my local art student to see if they can create something for me. I love illusions and things like this and if they can come up with something suitable would consider changing my business logo.
It's off at a tangent from this but
http://www.sandlotscience.com has some fun optical illusions one or two of you may like. Found it whilst bumbling around the web a while back.