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.
Ten days back (April 7th) was my 30th birthday! Been up to my eyeballs in photography projects since then and only just got some breathing space to draw... always good to be back after a break, however big or small.