Now here's a slightly different one. This is in purple ink on purple rice paper. The paper is very delicate, so I've signed it very very lightly on the back to prevent the ink from bleeding through.
This card is standard ACEO size: 2.5 x 3.5. It is an original.
My ACEOs -- doodles, collages, and paintings -- are now available through eBay: http://shop.ebay.com/lifeneedsart/m.html