海藻在蓝晒纸上围出一个潮汐圈

Cyanotype-style image on deep Prussian blue: three differently shaped seaweed fronds curve around a circular central void, translucent overlaps pale blue. Slight wash marks at paper edges, irregular balanced composition, no border or labels.

深普鲁士蓝底的蓝晒风格图像，三束不同形态海藻围绕中心圆形留白自然弯曲，叶片透明重叠处呈浅蓝。纸边有轻微水洗痕，构图不规则而平衡，无边框或标签。