Triptych of Verticals presented at Big Art 2020, by Donald Schenkel. Photography by Roza SchousTriptych of Verticals presented at Big Art 2020, by Donald Schenkel. Photography by Roza SchousTriptych of Verticals presented at Big Art 2020, by Donald Schenkel. Photography by Roza SchousTriptych of Verticals presented at Big Art 2020, by Donald Schenkel. Photography by Roza Schous