Hello!
Here's a step-by-step WIP's sequence of recent Mercy x D.va Halloween picture picture (original lineart by Legoman)
I've already did a grayscale render of this drawing before so it was sort of like a grayscale-to-color process. And some environment parts like pumpkins and stairs were done in 3d
If you'd have any questions about the coloring process of this picture - please don't hesitate to ask me! You can either reach me here in the comments or drop me a message on Discord (AleskaArt#1058 ) Will be more than happy to answer!