Hi Thomas,

Nice job working on some simple "planar" surfaces.

I thought I'd point you to a few links that might help and inspire you in your
future work.
I like the flattened-sphere method that you're using from a simplicity
standpoint, however I would suggest that triangles or smooth_triangles might be
almost as simple, yet give you a smoother, more continuous surface.

Lohmueller nested loops
 https://www.f-lohmueller.de/pov_tut/loop/povlup1e.htm


For your splines going across the surface, perhaps a Bezier patch would work
best, with a sphere sweep for the splines.

BW/TOK stitched Bezier patches
 https://news.povray.org/web.5b788c1c9b869b61458c7afe0%40news.povray.org
Surface normals
 https://news.povray.org/web.6394bb44855140c41f9dae3025979125%40news.povray.org

Considering your interest in modeling nature, I don't think you'd want to miss
out on Friedrich Lohmueller's excellent leaf modeling tutorial.

Lohmueller leaves
 https://www.f-lohmueller.de/pov_tut/tex/tex_887e.htm

.. . . or this amazing render in the Hall of Fame:
HOF forest
 https://hof.povray.org/fallfury.html

Hopefully this will inspire you, and I'm looking forward to seeing what you do
with all of this in your next full-length video.
I think that you could make an excellent lipid bilayer or something similar!

- BW

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