Create a tranquil scene of koi fish swimming in a still pond, with a muted, monochrome color palette. The artistic style is inspired by Japanese ink painting, where fine lines and subtle washes of ink capture the movement of the fish. The medium is ink and watercolor on mulberry paper, with soft greys, muted blues, and touches of pale orange for the koi fish’s subtle patterns. A macro lens (100mm) should be used to capture the intricate details of the fish and the surface of the water. Lighting is natural, with soft, diffused light reflecting off the water’s surface. The background is the smooth, undisturbed water, while the foreground includes a few scattered lily pads and ripples caused by the fish’s movement. The focus is on the graceful, fluid motion of the koi fish and the calm atmosphere of the pond, evoking a sense of harmony and balance.