Evening LED Kittens Billboard Mockup

I need a short, photo-realistic video that shows a giant LED billboard on a New York-style street just after sunset. The ad itself is a high-contrast close-up of an irresistibly cute basket of kittens, designed to draw the eye even among busy city lights.

Here’s the key visual brief:
• LED screen, portrait orientation, mounted high on a glass-and-steel façade.
• Evening ambience—sky still blue but streetlights and window glow beginning to shine.
• Surrounding architecture should dominate the composition; traffic and passers-by can stay in the periphery, but the tall buildings must feel massive and authentic.

The finished piece should run 10–15 seconds, looping smoothly, and look convincing enough that someone could mistake it for a real location shot. I’m comfortable with whatever pipeline you prefer—Blender, Cinema 4D, Houdini, After Effects, Nuke—so long as the final delivery arrives as:
1. 4K MP4 (H.264)
2. A still frame (hi-res PNG) for thumbnail use
3. Project file or layered comp for any last-minute tweaks

Please balance light sources, reflections, and motion blur so the LED panel feels naturally part of the scene. If you’ve tackled similar city-scale billboard composites, send a link; that’ll speed up the decision.