Night time in a city half-submerged underwater. The once-grand Colosseum, now encrusted with barnacles and coral, rises dramatically from the murky depths. Its arches frame a blood-red moon hanging heavy in the polluted sky. Crumbling stone and twisted vines intertwine, a stark contrast to the vibrant bioluminescent algae glowing on the submerged structures. A lone scavenger, silhouetted against the eerie light, wades through the shallows, searching for treasures amongst the debris scattered on the Colosseum floor. Masterpiece (Octane/Unreal Engine). Capture the intricate details of the decaying Colosseum and the haunting beauty of the half-underwater cityscape.