Ribbons v12

Arms lunge out of a dark hub and retreat again, each on its own beat and in its own colour, leaving blurred crescents of teal, red and blue where they turned. Much of the figure hides near black until an arm's phase brings it up.

Each arm's reach is the absolute value of a sine with a per-arm phase offset, so the limbs breathe in staggered rhythm instead of together. Colour is keyed to the arm index rather than to progress along the body — one arm, one hue — and a per-stamp rotation with a wobble term twists the hub, while the blur buffer records the crescents.