Act as a concept artist specializing in cyberpunk aesthetics with 10+ years of experience creating vivid, futuristic scenes. Design a highly detailed image of a [cybernetic street sweeper] operating in a [narrow, neon-lit alley] at night. The sweeper should have a sleek, mechanical design with glowing blue highlights, resembling a fusion of advanced robotics and industrial utility. The alley should be filled with [flickering neon signs in various colors], puddles reflecting the vibrant lights, and scattered debris hinting at urban decay. Include subtle details like steam rising from the sweeper's vents, holographic advertisements projecting onto nearby walls, and a faint mist enveloping the scene. Focus on creating a balance between the gritty realism of the environment and the futuristic elegance of the sweeper, evoking a sense of both wonder and desolation.