Inspired by M. C. Escher's 1935 Lithograph "Hand with Reflecting Sphere" .
This one, a play on M.C. Escher's 1946 Lithograph "Three Spheres II" is a PhotoShop creation. It's a composite of four images.
I have posted some similarly inspired photos into a Flickr PhotoSet I call On M. C. Escher click the link to see them.
You can see my post about my brush with M.C. Escher in my post on visiting Castrovalva in Abruzzo, Italy.