On the horse tile, start off with a simple white 4"x4" ceramic tile. take in this case orange rust-oleum paint. let dry about an hour or so, then right over the orange paint, black paint, let dry an hour or so. Then into the pew-pew machine
1000 speed
100 power
340 LPI
85-90 dot density
convert to dots
an hour later or thereabouts out comes a wonderful “Color” picture.
I’ve done as many as 4 colors (including black) on a tile.
Edit: Black is always the last color