Here are some of the steps I took to create a multicolor pixel art drawing of a cat.

grayscale image of a cat drawn in ibisPaint X

drawn in ibisPaint X in 4 colors

colored pixel art of the same cat in Pixaki

traced and redrawn in Pixaki

colored pixel art of the cat display in VICE C64

made into C64 runnable multicolor art with MultiPaint, loaded into VICE C64

It’s a process, taking many hours to complete. I think I’m improving.