Trial and error.
The 'trial' is the scan. My poor printer is not a high-quality piece and trying to get color and detail just right is probably not in the stars for this machine. I guess that makes this the 'error', as well.
A little colored pencil piece that I'm pretty proud of. A red 1957 Chevrolet front fender and bumper drawing that measures 2.5"x3.5" as in "ACEO size". The scan comes into play as I'd like to scan and print a limited run of all of my hotrod drawings for summer shows. A departure from jewelry for me. Labors of love, these little "jewels" are.