Detail of
this pattern.
A few years back this tessellation was the subject of a workshop I gave and I'm learning it to a few friends of mine next week again ;-)). It is interesting, because Tomoko Fuse uses different divisions of the paper and that gives different result. This is a field of version B.
Model: Origami Whirlpool Patterns
Design: Tomoko Fuse
Diagrams and crease pattern in Tanteidan Magazine #64.