These are the two 2D sections that i chose to develop in SketchUp. Images of both 3D models are shown but the model I chose to further develop and detail was inspired from the top section. it shows the small box or cube and as it "evolves" it splits into two different boxes, it also gives the impression to have a crease as the Datum from which the evolve is pivoted from.

Below are two images of a early 3D model of both the Sections.