Following extensive research in collaboration with chemists, Ammerlaan manages to capture an urban phenomenon: oil stains visible through the right light on a rainy day. Here the artist coats canvases with black acrylic paint before submerging them in a bath of water infused with an undisclosed concoction of chemicals. The result is a mesmerizing holographic and iridescent colour effect—shimmering and alluring as it emerges from the depths of the black surface. While visually stunning, these paintings also serve as a poignant reminder of the polluting and toxic nature of the oil spills they represent.