architectural forms are reinvented with soft pastel holographic colors, creating an airy and dreamlike scene for

holographic holo iridescent reflective metallic rainbow reflections sparkling glow glimmer retro 90s 2000s nostalgia spectrum gleam gradient pastel architecture form structure minimalism light airy ethereal fantasy backdrop abstract design tranquil modern serene aesthetic subtle chic creative art clean contemporary soothing harmony geometric imaginative elegance ai generated