"Design a sophisticated and elegant aftercare card for powder brows. The card should be the size of a standard postcard. The front side must feature a minimalist and chic design with soft, neutral colors like blush pink, beige, and white. Include an artistic, subtle illustration of perfectly shaped eyebrows on a female face, emphasizing a soft, natural look. The back of the card should have a clean layout with easy-to-read, stylish fonts listing detailed aftercare instructions. Include icons that represent key steps such as 'avoid water', 'no touching', and 'apply ointment'. The overall design should convey a sense of luxury and professionalism, appealing to a high-end beauty clientele. The card should also have a small section that allows the salon to personalize it with their logo and contact information.