Vibrant, detailed and minimalist illustration of an underground sewer with a pipe forming a gutter in the ground where there is a small stream. The background is a striking black in contrasting shades of bright blue and crisp light blue, evoking a sense of depth and dimensionality. Puddles of water can be seen on the ground, reflecting the dim light. The atmosphere is meant to be dark and gloomy, with dim lighting creating deep shadows.