Bubble Islands
My only square-dimensioned image to date, and the instigator of the desire/need for a mat cutter of my own, this particular piece started life not long after I first acquired Bryce 5, and began playing around with it. The original incarnation sat untouched for probably a good year of intermittent graphics creation. When I looked back at it, I decided it needed improvement, and that image is the result. :) It took two days, two hours, 27 minutes, and 44 minutes (yes, I have the render report saved) to render it at printable dpi. The image is a direct link to the page at my online store (which uses PayPal for payment processing).
Not that I'm hinting or anything. ;)

