fantastical outer space whale journey amidst vivid nebulae and distant planets, concept art for creative fantasy

whale outer space journey nebulae planets surreal majestic fantasy creative cosmic colorful sci fi concept art stars sky universe atmosphere galactic dreamlike glowing vivid ethereal imaginary wanderlust exploration celestial wonder mystical otherworldly artistic illustration digital artwork design galaxy cosmos traveling astral scene background horizon expanse mystery magical terrain vision surrealistic deep heavens floating vibrant picturesque interstellar extraterrestrial unlimited infinite ai generated