Design a professional and visually appealing promotional poster for a 'Jornada de Varices y Fleboestética Avanzada'. The design should convey a sense of medical expertise and advanced aesthetic treatments. Incorporate images of legs, highlighting varicose veins before and after treatment, and aesthetic procedures. Use colors like blue and white to evoke a clinical and trustworthy atmosphere. Include icons or symbols related to healthcare, such as stethoscopes, medical cross, or ultrasound devices. Add text boxes for event details, dates, and venue, ensuring clear readability and an organized layout. Create a modern and clean design that appeals to both medical professionals and potential patients. --ar 16:9