Ok, just some quick research, it seems like the picasso's are colour variations of the percs bread by ORA in the USA, here is an insert from their site
"The Picasso Percula is a selectively bred True Percula Clownfish with erratic misbarring, similar to a jigsaw puzzle piece, covering over 75% of its body. A very small percentage of offspring of Picasso pairs retain these characteristics. Each fish is unique with its own distinctive misbarring. Because of the limited occurrence of the misbarring, availability of the Picasso Percula is limited."
Good luck in finding them. Hell, in the US they are about $100 each.