Albarracín, Spain. My first time trying an urban sketching. Although it's only from a reference photo, it's a good way to practice this art technique. Line art and watercolour wash on a watercolour sketchbook. I used a Sakura Micron Pigma 5.
My son and I were blowing bubbles in liquid watercolors with dish soap, then putting the bubbles on the paper. I took a pen to some of mine, and these little guys appeared.