It's good to experiment.

For future reference, you might try color studies.

https://www.creativebloq.com/art/create-colour-thumbnails-paintings-5-steps-51620214

https://mitchalbala.com/getting-the-light-right-the-power-of-the-color-study/

I've seen programs for making a cross-stitch pattern, complete with colors. You could probably find one of those that would work for color studies. It's gotta be faster than undoing stitches!