und3rw4t3r c1ty, photorealistic cinematic still of the ocean observatory, floor-level view along copper and rubber decking toward the glass with console foreground, a brass-ringed observation chamber, huge curved ocean viewport, copper instrument consoles with abstract indicators, faint colossal indistinct organic silhouette far away in the ocean, copper and rubber decking, green-blue ocean glow and subdued brass instrument lights, green and blue palette, art-deco underwater city, geometric brasswork, black marble and brass architectural accents, warm golden windows against deep blue water, riveted steel, drifting bubbles outside sealed ocean glass, photorealistic cinematic rendering, medium depth of field, filmic gold-against-abyss color grading, sublime deserted dieselpunk grandeur

worst quality, low quality, deformed, bad anatomy, bad hand, blurry, (watermark), artist signature, artist name