Dark background, with precise studio lighting focusing on a watercolor brush that has just finished painting, floating gently in transparent water. The brush moves slightly, causing faint blue paint to slowly diffuse into the water. The blue paint spreads like delicate ripples, gradually creating soft water patterns. The paint gradually expands in the crystal-clear water, with the edges of the diffusion becoming blurred, creating a natural flowing effect. To reduce camera shake, the shot remains stable, ensuring no unnecessary vibrations, providing a smooth and steady visual. Every trace of the paint’s diffusion realistically shows the movement of the water, and the brush’s motion perfectly complements the paint’s expansion, displaying intricate physical effects. The scene is rich in detail, with the brushstrokes and the watercolor diffusion in the water coming together beautifully, presenting the true texture and natural flow of watercolor. The scene is captured in high definition (4K), with high resolution and high image quality, using high bitrate output, ensuring that every detail is clear and visible. The water surface, the paint’s movement, the blending effects, and the changes in lighting are all finely presented, making the image dynamic and full of artistic energy.