Sort:  

this is Spiral Rapture 2 - there was a first, simply called Spiral Rapture (no number), and when it came to create a piece for the Fernal Garden Show in SF a couple years back, I expanded on the initial concept. This is the earlier version from 1993 (private collection, Austria), at 16 x 27.5 cm much smaller than the new one:
SPIRAL RAPTURE - web.jpg

Thank you for this additional explanation. :)