Number of units: 42 (7 colors, 6 pieces per color).

Designer: Meenakshi Mukerji

Instructions: Here. Also, check out Assembly Guide. Instructions also found in the book Ornamental Origami: Exploring 3D Geometric Designs (2008, 154 pages) by Meenakshi Mukerji. To get started with models like these, check out How to Make Intersecting Plane Models.

Comments: Individual modules are very simple. Took me about 3 hours to finish. The overall design is `seven intersecting stars', one star per color. Each star is in a plane -- notice the star made by white paper in the picture.