6+boys alex_cazellnu annotated arm_support artist_request beret black_jacket blonde_hair blue_eyes blue_hair brown_hair closed_mouth collared_jacket dusty_attenborough frederica_greenhill ginga_eiyuu_densetsu hand_behind_head hat hyperion_(gin'eiden) jacket julian_mintz light long_sleeves looking_at_viewer military military_jacket military_uniform multiple_boys oliver_poplan one_eye_closed short_hair sitting smile space_craft thumbs_up uniform walter_von_schenkopp yang_wen-li