This design introduces a third shape layer, 3x the fidelity of the first layer, and uses circles, pills, and quatrefoil shapes. I made the lines divide the shapes rather than sit on top of them, highlighting the arrangement of the shapes on the grid rather than overpowering them.
Similarly to my last 2 puzzles, I started this solve by fitting together the brightest colours. Due to the granularity of the shapes this resulted in lots of small islands of assembled pieces, it was fun and a little confusing to figure out how they all fit together.
Each jigsaw is designed and developed entirely in the browser. Above are some random outputs generated on the fly just for you – crack open the explorer for finer control of the parameters.