CMYK Drawing with Arduino Pen Plotter

I have an Arduino Pen Plotter for a while and I just use it for some simple drawing , but I didn't know that it can draw some unbelievable drawing , like colorful one . these two drawing are just for an example and I drew more complicated drawing too.
see here for previous videos of drawing on one color:
• Image To Line Art and ...
• ESP32 Pen/Laser Contro...
there are tones of websites to convert your image to drawing or make line art that can be use for Pen plotters.