Let's do somethng subtle.

Pick a nice spiral galaxy. Perhaps even our own. For other galaxies
there are nice photos. For ours we'd have to rely on astronomers'
calculations instead.

Draw a semistylized version of it, with a fair amount of the
commplexity.

We end up with something vaguely remniscent of the Debian spiral, but
utterly different. Something more rich and intricate. Something with
multiple spiral arms, indicating our freedom of choice.

-- hendrik