Celtic Leaf Transformation

This is my first attempt at a simple repeating tessellation (a la M.C. Escher) with elements of Celtic Knotwork. Also, I really do have a 'thing' for leaves and color progressions. The base image is hand drawn and inked, then scanned and digitally enhanced. (I categorized this as 'traditional art' because the basic elements/grounding of this piece are done by hand, even though the repetition and final form was done digitally.)

(Please click on the image to see the larger version, as a lot of the details get muddied in the thumbnail version!)