Geometrics pattern collection: Underground rocks

More patterns this week.. this time it's geometrics and the latest fashion trend is the patchwork look. Mixing different shapes together in all sorts of ways: rectangles, squares, triangles, abstracts and lines. Funky! There's my version of it below.

I started off with a suggested paper exercise, cutting up a shape in pieces and finding ways to arrange them. Can you guess the shape?

I tried a few arrangements, like lining up the pieces, and added lines and brushstrokes once in the computer. It kind of reminded me of geological cross sections, rocks and different kinds of minerals underground, which is why I named the collection "Underground".

And now's the fun part.. what to do with these patterns? Turns out they look good on sportswear!

Or stationery :)