Watercolor in Canson Montval All-Media sketchbook, 90-lb CP paper, approx. 6" x 9" (15.2 x 22.8 cm). Sketched with Sanford uni-ball Micro pen.
Another sketch from a photo reference taken at Yellowstone Nat'l Park a few years ago. Hayden Valley is in central Yellowstone; one usually encounters buffalo when driving through the valley.
You may also wish to check my Flickr site athttp://flickr.com/photos/liquidchroma-