"Create a 2D vector illustration of an office character standing with a serious facial expression and holding up one hand in a ‘no’ gesture, with the palm facing outward. The character is dressed in formal office attire, such as a business suit or button-up shirt and tie. The expression should be clear, showing disapproval or refusal, with furrowed brows and a firm mouth. The background is solid black, making the character stand out in contrast. The art style should be modern and minimalism, with clean lines and soft colors for the character."