Atomic Heart Twins, retro futuristic sci-fi, 1950s Soviet Union-inspired, twin girls, identical, 10yo, porcelain skin, bright blue eyes, curly blonde hair, pink dress, white apron, holding hands, standing back to back, contrasting colored socks, sneakers, atomic patterned wallpaper, neon lights, distressed texture, VHS glitch effect, nostalgic atmosphere, symmetrical composition, low-key lighting, cinematic mood.