Marker, pen, and gel pen. 2014. Marker at the Vanderbilt Museum. 2014. Marker and gel pen at the American Museum of Natural History. 2014. Watercolor and marker at the American Museum of Natural History. 2014. Marker and gel pen at the American Museum of Natural History. 2014. Marker and gel pen at the American Museum of Natural History. 2014. Pencil. 2014. Pencil. 2014. Marker. 2014. Ballpoint pen. 2013. Ballpoint pen on gesso – at the Vanderbilt Museum. 2013. Marker, pen, and paint marker. 2013.