A few examples taken from a much larger project by creative agency Littlehawk, who I helped to create these graphics for as part of their rebrand of BBC Studios.
Using a combination of layered Photoshop files and intricate vector graphics in Illustrator, they utilise masking, layer blending and transparency to create multiple formations. Different versions of these were used across stationery, screensavers, large format graphics for event walls and livery for the BBC Studios offices.
All images copyright of Littlehawk LLC.