Sitting pose: Sitting on the front edge and leaning slightly forward

Change the straight, upright back to a shallow sitting posture.

The buttocks are only on the front edge of the sofa or seat, with a section of the thighs suspended in the air, and the knee height slightly lower than the hips. The upper body is slightly tilted forward, the spine retains its natural curve instead of being straightened, the chest is slightly tucked in, the shoulders are relaxed and lowered, leaving a clear distance between the back and the chair back.

The elbows can naturally rest lightly on the thighs, providing a reason for the forward lean.

It should still be evident that the center of gravity is stable, with both feet firmly on the ground to bear the weight of the forward lean, not as if about to slide off or in the process of standing up.

The cushion should show natural indentation and wrinkles where the buttocks make contact, while the part away from the backrest springs back flat. This contrast must be depicted.

Maintain the face, clothing, lighting, and background as they are.

Avoid: stiff back, entire person sinking into the backrest, thighs penetrating the seat surface, cushion showing no signs of pressure whatsoever.

Translated from Chinese by AI.

把挺直端正的背改成淺坐。

臀部只坐在沙發或椅面的前緣,大腿有一段是懸空的,膝蓋高度略低於髖部。上半身微微前傾,脊椎保留自然的弧度而不是打直,胸口略收、肩膀放鬆下沉,後背與椅背之間空出明顯距離。

手肘可以順勢輕靠在大腿上,讓前傾有支撐的理由。

仍然要看得出重心穩定,雙腳確實踩地承接前傾的重量,不是快要滑下去或正在起身。

坐墊在臀部接觸的位置產生自然凹陷與皺褶,離開椅背的部分則回彈平整,這個對比要做出來。

臉孔、服裝、光線與背景維持原樣。

避免:背部僵直、整個人陷進椅背、大腿與椅面穿透、坐墊完全沒有受力痕跡。