兄妹儿童写真

生成一张 4:5 竖版兄妹儿童写真。中国哥哥和妹妹坐在客厅地毯上一起搭木质积木城堡，哥哥扶着高塔，妹妹认真摆放小木块，表情专注自然。背景是明亮客厅、低矮书架、浅色窗帘和几盆绿植，色调清新多彩但不杂乱。真实家庭摄影，35mm 低机位，保留孩子全身、手部动作和玩具细节，人物比例真实，避免脸部变形。画面内不要出现任何可读文字、logo、水印、包装文字或品牌标识。

Create a 4:5 vertical sibling children portrait. A Chinese older brother and younger sister sit on a living-room rug building a wooden block castle together; the brother steadies the tower while the sister carefully places a small block, both focused and natural. Bright living room, low bookshelf, light curtains, and a few plants in the background; fresh colorful tones without clutter. Real family photography, low 35mm angle, full bodies, hand actions, and toy details visible, realistic proportions with no facial distortion. No readable text, logo, watermark, packaging text, or brand mark anywhere in the image.