I went to the art store today, because I lost my black micron pen and wanted to buy a new one. I didn't, of course, escape with such a meager purchase! I defy anyone to buy one pen and walk out.
One of the things we did in Brenda Swenson's workshop was draw with Tombow pens, which are colored, water-soluble markers. She uses only one color, a kind of sepia-tone, which is nice; but I decided I wanted to play with using other colors as the basis of a painting. Since the colors from Tombows will bleed into your painting if you add watercolor, though, I decided to stick with some fairly neutral colors, so I bought a gray-green, and a dull purple one.
I went out in my back yard to draw the fence between my house and my neighbors'--they planted a vine on their side, and it has crept around and up over the fence, to give a nice leafy, softening effect. So I drew the block wall and leaves in the gray-green, and then the fence cap and the blossoms on a rosebush and a scented geranium in the purple, and then I decided to paint; but instead of introducing more color, I just used a wet brush over the Tombows.
After this experiment, one of the outdoor cats came along and decided to lie down in the middle of the picture and bathe himself, so I did a few quick studies of him licking various unmentionable parts in some of the extreme positions that only cats can encompass. I liked these better before I introduced water, but...experiment noted, I'll try something different next time.