The below image was created by Julian MacDonald. Julian said that this piece was "inspired by M C Escher's 'Reptiles', this is meant to be an image of a painting 'spawning' frogs - while the artist disappears for a cup of coffee, the frogs come out and play!"
Used with permission
He created this image with the "Art of Illusion" and details some of what he did on this page.
What is the Art of Illusion?
The Art of Illusion is a free, open source 3D modeling and rendering studio. It is written entirely in Java, and should be usable on any Java Virtual Machine which is compatible with J2SE 1.4 or later. You can get your copy of this software for free here.