2boys, 2girls, alien, armor, arms_behind_back, black_hair, bodysuit, dark-skinned_female, dark_skin, desert, from_behind, from_side, gun, hair_bun, helmet, holding, holding_weapon, hood, hood_up, leaning_on_rail, mountainous_horizon, multiple_boys, multiple_girls, planet, railing, satellite_dish, science_fiction, space, space_craft, star_(sky), sunset, weapon