Frank Toepfer:
Trees, near Emmerich
Frank Toepfer:
Trees, near Xanten
Frank Toepfer:
Trees, near Xanten
Frank Toepfer:
Trees, floodwater study I, near Duesseldorf
Frank Toepfer:
Floodwater, Rhine near Duesseldorf, 2011
Frank Toepfer:
Floodwater study 6, Emmerich, 2011