A modification of my earlier design, Double Spearhead Tessellation. Due to the double bottom with more paper layers, this model doesn’t look as nicely back-lit as the source model.
The molecule uses just a 6×6 grid, but there are quite a few layers. The sheet was 24 cm, so with 4·6 = 24 divisions plus some margin around, the grid unit was probably 8 mm or so.
This was my first fold using Kaiser paper, sold by Origami Shop under the name of Stark: have a look at my review.