A small mouse standing on its hind legs, puffing up its chest and trying to look intimidating and fierce. Despite its small size, the mouse is attempting to appear powerful and threatening, showcasing a false sense of bravado to hide its true timid nature. The background can be a simple outdoor setting to highlight the contrast between the mouse's small stature and its exaggerated display of aggression. The style is vibrant and playful, with exaggerated facial expressions and actions to emphasize the concept of '虚张声势'.
