使用 Nano Banana Pro 模型，打造毛茸茸字母怪兽的极简 3D 角色，适用于儿童教育和品牌设计，以生动表情和柔软质感传递情感。
提示词
A highly realistic 3D render of the letter [A-Z] designed as a full-body fluffy monster. The letter shape itself is the creature’s body — no separate head or limbs. The eyes, mouth, and other monster features are embedded naturally into the letter form. The monster expresses a [mischievous / grumpy / shy / joyful / sleepy / surprised / confident] emotion through its eyes and mouth shape. The texture is dense, soft, and realistic fur, with subtle volume and shadow. The color palette is bold but clean — solid vibrant tones like mint, lilac, sky blue, or coral (avoid rainbow gradients). Studio lighting on a simple pastel background. No hats, no party props — just a minimal, high-quality character design with playful expression.
