I wanted to try a drawing that uses a monochromatic color palette. I found the process to be very enjoyable. It can feel limiting at times, working with only one color of varying shades. Specifically when choosing the amount of shades you're working with. It's also a nice alternative when I can't think of a color scheme that uses different colors.
Part of a personal project I'm working on right now, to experiment with unfamiliar art styles and practice lettering skills by drawing animals. I enjoyed this foray into digital mosaic (or fauxsaic as I've seen it called).
I used an online program called "Sketchpad" if you'd like to use the web tool I used for the trees. I was overall just messing around with it, but I'm very happy with the result.