Kalami (Christine Pape? or Blasek?) published this Sonobe variation. You can find it in the Christmas Origami Book 2009 (as well as many, many other diagrams and crease patterns! Enjoy :)) or on her website (some other diagrams too, all very precise, beautiful and clear).
It doesn’t seem to have a specific name, but I always refer to it in my head as the “razor kusudama”, because the flaps that go up between the montains look so sharp.
It is folded from 30 sheets of 7.5 cm paper “black and white” from Aitoh. I used 5 different patterns, there are 16 in the pack – I think they make most models look classy, I love it.
For a while, I folded kusudamas all the time. I only folded models that required square paper, no glue, no cut.
I don’t exactly remember the models presented here. I think the ones on the upper left and middle center are the model in the book from Rick Beech – that’s the first 30-modules model that I folded, it got me hypnotized and I folded it many, many times. The bottom left looks like a regular sonobe.
They are all folded from 7.5 cm paper. The fluorescent paper is “Origami mini-Pop” from Avenue Mandarine. The two on the left and the upper right are Showa Grimm “1000 cranes” (I love this traditional japanese pattern, here in non-traditional colors). The middle left is Toyo 50 colors. The upper middle left is double-sided chiyogami. The front center is really cheap chinese paper from ebay.
I’m not folding much kusudama these days, I’ll publish more recent things soon :)