Underwater Mecha in the Deep

Mecha anime key visual, detailed hard-surface panel lines, cel shading, dramatic rim light, sense of scale. A deep-sea mecha with bright floodlights exploring a sunken city on the ocean floor, schools of fish, drifting particles. No text, no letters, no logos, no watermark.

Prompt tip: Name the environment's weather; rain, snow and dust make mecha look heavy.