Ok, a few ideas here to unpack.
You’re looking for an image file (as opposed to a vector file) that is drawn with all the lines and shadows.
You’ll need to find your smallest dot using the Interval Test in Laser Tools.
Lots of testing and experimentation will be required.
This is useful for the direction you’re headed:
Post results, even (especially) results you’re not happy with.
The more experienced eyes you can get on your work the sooner you’ll reach your desired outcome.