Futuristic arc, Los Angeles cityscape, evening time, vibrant neon lights illuminating the arc's curves, skyscrapers in the background, modern buildings with sleek glass and steel structures, busy streets with flying cars zooming by, holographic advertisements floating in mid-air, pedestrians walking on sidewalks lined with palm trees, distant mountains fading into the horizon, warm sunset glow casting long shadows, cinematic composition, depth of field, vibrant colors, sci-fi atmosphere.