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.
A value study I did with my friend for practice. Based on a D&D picture we found online. First time using different shades of markers, so it isn't the cleanest piece when looking at it up close.
My mother actually used to say this to me and my brothers when we asked her to do something while she was in the midst of doing something else...Magic marker, then worked in Photoshop.