GS CurveTools v1.1 Plug-in available here: https://www.artstation.com/a/16202
or here: https://bit.ly/FN_Sladkovsky_Store
For Maya 2017-2020
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4K Texture map was rendered using X-Gen and Arnold.
Scene was rendered in Marmoset Toolbag 3.
Tri-count after Maya Reduce: 28k triangles.
Of course, manual optimization can reduce this number even further.
Overall I'm quite happy with the result and as always, learned a lot in the process.

Head geo is from "Slim Female Basemesh" by Eugene Fokin