姿勢【しせい】
posture, pose, position, stance, carriage (of the body), attitude, approach, stance
姿【すがた】
figure, form, shape, appearance, dress, guise, state, condition, picture, image, form (of a waka), dressed in ..., wearing ...
後ろ姿【うしろすがた】
(a person's) appearance from behind, person as seen from behind, back view, retreating figure
容姿【ようし】
(physical) appearance (of a person), one's face and figure