Cactus / grafted cauliflower

I collected seeds of Ariocarpus retusus v furfuraceus cv Suguri cauliflower from my plants and sowed on 23/09/2010. I grafted 24 of young seedlings in January this year onto Pereskiopsis stocks.
Some of scions have shown cauliflower characters already.
The photo is one of them, 35 mm diameter.