Pixar-style 3D animation character, CUB BEAR (son): Small, chubby, round body, soft light-brown fluffy fur, slightly messy, huge shiny curious eyes (60% of face), tiny round ears, one slightly tilted, energetic playful expression with happy open-mouth smile or surprised O face, looking up with admiration, natural bear cub, no clothes, soft detailed fur, warm golden lighting, character reference sheet, front + side + 3/4 view, clean white background, Pixar/Disney 3D style, 4K rendering
