Photoreal cinematic still in the bright sunny family living room from the reference image (herringbone oak floor, olive-green walls, oak staircase, white sofa), nobody in the room. In the middle of the room a modern portal assembled from light: thousands of tiny glowing cyan and white particles stream along thin lines of light across the floor and spiral up into a luminous circular aperture about two meters tall, its center a soft bright opening onto a deep turquoise underwater world with sunbeams and jellyfish. Feels like a high-tech hologram forming in real time, elegant and airy, premium high-end VFX, light reflecting on the floor and walls. Not a cartoon vortex.
