Big Trees, 2006 Chandelier Tree charcoal & graphite on paper   Big Trees, 2006 Chandelier Tree charcoal & graphite on paper   Big Trees, 2006 Big Tree charcoal on paper, 116 x 166 cm   Big Trees, 2006 Old Man Burl charcoal on paper, 116 x 166 cm   Big Trees, 2005 1969 charcoal on paper   Big Trees, 2005 1961 charcoal on paper   Big Trees, 2006 Shrine Tree charcoal on paper, 116 x 166 cm   Big Trees, 2006 The Animal Tree charcoal on paper, 116 x 166 cm   Big Trees, 2006 The Telescope Tree charcoal on paper, 116 x 166 cm   Big Trees, 2006 1965 charcoal on paper,   Big Trees, 2006 Worlds Tallest Tree charcoal on paper, 116 x 166 cm   Big Trees, 2006 1974 charcoal on paper   Big Trees, 2005 1956 Chandelier Tree charcoal on paper   Big Trees, 2005 1962 Wawona Tree charcoal on paper   Big Trees, 2005 1956 charcoal on paper   Big Trees, 2005 1973 Shrine Tree charcoal on paper