Combinations of watercolor and gel pen, seems to work well. First one, with pen sketch on a watercolor background. Second one, a watercolor painting contoured with black pen.
After seeing a video on Facebook, couldn’t resist of trying this toothbrush splattering technique. Seemed easy but nice looking for stars, trees etc. The starry sky is somewhat copy of the image I saw on Facebook. The cherry tree is just another try with technique, which actually didn’t go as expected.