Celestial faces

[Jorge_Stolfi]

fillet-type of headband - perhaps a coronet or circlet of some kind. There are a number of such images in the codex

There are indeed a number of "scalloped diadems" or "showercaps" in the Zodiac and Bio pages, but (like the crown of f72v1) they are mostly (if not all) in the dark ink of the Boobs Retracer.  In the original illustrations, the nymphs generally were bare-headed or wore "commoner" hats, rather than diadems or crowns.

All the best, --stolfi