Just finished the excellent EXPLORING Kourse (Sketchbook Skool), I had to set my own agenda. I am trying to get used to using watercolors. I like it when they don't fill the page entirely. Here is an archerfish trying to catch an insect by spitting at it,
Freehand sketching in ink from a photo reference I found online, to practice conveying that lots-of-stones look without drawing all the stones (photo credit: K. Mitch Hodge). Micron pens + alcohol markers.