Cluster Tessellation, designed and folded by Michał Kosmulski. There are several different ways of achieving a similar effect but with a slightly different pattern in the background (one can for example start from a four-sink-base). The variant shown here is the one with cleanest background, so that the clusters and not the background are exposed. It starts from what I call Clover Base, that is a level-1 Clover Folding by Fujimoto (just the central square, folded from 6×6 grid) [later update: this is usually referred to as Crossed Box Pleat].
Folded from rare orange-colored Elephant Hide paper.
At a later time, Angelika Schwengers independently developed her Traubenbox (Grape-Box) which uses a very similar molecule for decoration.