American artist Courtney Mattison’s impressively intricate—and impossibly delicate—ceramic sculptures recreate the wonders of coral reefs. While the works are stunning in themselves, they also draw attention to ongoing issues of coral bleaching, and the threat humans pose to underwater ecosystems: Vibrantly colored components are juxtaposed with bone-like elements coated in white glaze. Courtney’s work has been exhibited widely across America, and in 2020, the United Nations Postal Administration featured her work on a postage stamp to commemorate the 50th anniversary of Earth Day.