From far away, these look like origami paper.
I originally was planning to create a collage of flowers or a floral background image, but decided to switch gears instead and create smaller versions of those flowers to develop pieces of "paper" that resemble flowered origami paper.
I played around with the layers, then shapes, hues and contrast to get these sets of colors. Later, I added in other cool filters to create a soft, texture effect, so it feels more like actual "paper" rather than just a flat image.