Oil painting texture, Catholic nun, traditional black and white habit, modest yet form-fitting, fabric clinging to curves, white wimple framing face,年轻修女, delicate features, porcelain skin, soft blush, eyes downcast demurely yet glancing up through lashes, lips slightly parted, one hand adjusting habit revealing hint of collarbone, candlelit chapel background, dim warm light, stained glass soft glow, quiet intimate atmosphere, sacred yet subtly sensual, intricate details, masterpiece, best quality, 8k, ultra-detailed, Rembrandt lighting, delicate shading, understated erotic tension, pencil sketch style.