a beautiful and insanely detailed matte painting of advanced civilizations at the end of time with surreal architecture designed by heironymous bosch, mega structures inspired by heironymous bosch's garden of earthly delights, creatures of the air and sea, ships in the harbor, vast landscape and horizon by tyler edlin, pastel color palette, masterpiece!!, grand!, imaginative!!!, whimsical!!, epic scale, intricate, sense of awe, elite, fantasy realism, science fantasy, high concept art, complex composition, 4k post processing