Environment Maps As Curves

So im working with Make2D to export vectors to illustrator.
I want to create a cell shaded effect similar to the effect of an environment map.

The problem is that environment maps don’t export any of the color changes as curves.

Is it possible to recreate the effect of an environment map on grasshopper using curves?

The cell shaded effect doesn’t have any smooth gradients so it seems possible. I also don’t mind if the effect doesn’t change with camera movement like a real environment map. A static version would be perfectly fine.

One method I already considered is taking a screenshot and use Image Trace on illustrator. But its a clunky method. And I would rather use nice clean curves.

These are basically the curves im trying to map into the surfaces.

Basically I want this exported as curves.

Show your file to get help.

Thank you for the response. I will upload the files as soon as I can.

I didn’t attach originally because I didn’t think the files were necessary.
Sorry about that

Balloon Dog Unshaded.3dm (1.1 MB)
Environment Map.3dm (225.4 KB)
Here are the files. Thank you so much for your help