serene digital 3d art of a palace-like structure amidst rolling desert dunes under a vibrant sky, perfect for wallpaper background

architecture inspiration palacelike background sandcastle decorative structure wallpaper rendering landscape arabesque dreamlike intricate detailed building peaceful majestic backdrop tranquil sunlight mystical digital rolling vibrant perfect skyline fantasy elegant horizon glowing serene desert palace mosque sunset golden clouds ornate exotic travel dunes domes grand sandy scene sand view hour warm calm art sky