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 opening like a camera iris: a vertical seam of brilliant white-cyan light splits the air and unfolds into a tall rounded opening framed by thin overlapping luminous petals, like a lens diaphragm made of light, revealing a deep turquoise underwater world with sunbeams and jellyfish beyond. Sleek, geometric, minimal, premium high-end VFX, soft volumetric light and reflections on the floor. Not a swirl, not a cartoon vortex.
