This is an erotic picture of two women on the beach. Painted from a photo picture and slightly modified (Position and I removed the sand on the skin). What I liked about it was the difference in height between the two models, yet a very similar body shape. The girls were painted in Corel Painter, the background is a mix of brush and filters from Photoshop. It took around 16 hours to realized.
The full size print is available at Redbubble
As for the real picture it’s a photoshop of the same woman. Some says it comes from Peter Hegre collection (Not verified). But here’s the real thing: