A cute, stylized 3D cartoon knight character inspired by chess pieces, standing upright with a smiling face, wearing a smooth rounded helmet and holding a short sword and shield. Replace the rounded feet with a broad, flat circular base like a classic chess piece to ensure the character stands firmly on a chessboard. The overall design should match warm earthy tones (light brown, tan, mocha), with a matte finish, soft shadows, and a toy-like clay texture. Minimalist but expressive.