Here is a quick summary of my grayscale to coloring process. There's more to the process than shown in the photo below but I just wanted to show the progression of the color blending.
If you would like to learn how to easily add color to your finished black and white artwork, check out my easy-to-understand course on how to add color to grayscale. It will definitely make your workflow easier. take the course here: https://www.artstation.com/a/13247188
This is a quick 1-minute video that shows how to use Clipping Masks in Infinite Painter for an easier shading process. This technique will work in any software that has a clipping mask feature. Thanks for watching.