Buddha on a Lotus Throne shows the Buddha sitting in the vajra posture with his right hand touching the earth and left hand holding a bowl of amrita. The toughting the earth position comes from the time that the Buddha was meditating under the Bodhi Tree and king of maras came to him and asked him how he knew that he was enlightened. He replined touching the earth saying, "the earth is my witness." 

This set includes a 8 x 10 inch high quality picture (300 dpi)and a smaller 4 x 6 inch photo with free postage for $ 2.00.

You can also download this image from this website for $ 0.50.