This may be an inappropriate bit of information to throw in here, but my enthusiasm and excitement for what is being developed prevents me from being discrete. There is an incredible tool being developed by Bagginsbill called VSS (Versatile Shader System) that will potentially do what you seek to do. Since fishnets mold themselves so closely to the body, they are appropriate subjects for the "Second-Skin" approach... but in order for them to look realistic in close-up renders, you want a fairly sophisticated material-room enhancements, such as displacement settings for your mesh. This means a mask.
I'm doing makeup using masks at the moment, and although my artistic skills are a bit average - poor Charlotte's obviously had a hard night out - you get the idea:

I know - not the best makeup ever, but it's all done in the material room as opposed to being painted directly on the texture .jpg, which I think gives one infinitely more flexibility to vary tint and add colours by layering and do different sorts of shine and all sorts of exciting things. And yes, he's even done stockings...
www.renderosity.com/mod/forumpro/showthread.php
...so I'm sure even fishnet can be done that way.

Here's the thread about VSS - it's a loooooooong read!
www.renderosity.com/mod/forumpro/showthread.php
An idea worth exploring...

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks