Multiple layers of mixed media and various methods and processes were used. Finish: Coated w/ thick high gloss acrylic that gives a very hard, scratch resistant, yet sem-flexible surface that is washable & virtually non-yellowing. "Floating Canvas": Canvas is 1 1/2 " thick + 1 'built up panel on back for total projection from wall of 2 1/2". Canvas appears to float off the wall.