Abi-station 似顔絵 face drawing

I made this picture several years ago on a japanese website. Recently I digged it out and used it on my MSN and was asked by several friends how I drew it. But I couldn't remember which website it was.

Coincidentally, I was looking at caricature generation for my research and came across this Web Picasso paper by a Japanese researcher and he has a website in Japanese with some drawings and explanations. Suddenly I recall this word "似顔絵" was the same word on the website that I used to generate this above picture. I googled it and there it is at the top:

似顔絵

The only problem now is that it is all in Japanese, trial and error will get you there.