Prompt 2: Design a captivating Facebook post illustration that promotes cheap air tickets for tourists. The background should consist of a vibrant collage of iconic landmarks, including the Sydney Opera House, Big Ben, and the Taj Mahal, creating a sense of adventure and exploration. Utilize a bright and vibrant color palette to evoke excitement and positivity. In the center, feature the text "Cheap air ticket Guaranteed" in a bold and modern typeface, ensuring it is easily readable against the colorful backdrop. Add a prominent CTA button labeled "Call Now," using a contrasting color to draw attention. Incorporate playful airplane icons throughout the design, adding a dynamic element that reinforces the travel theme. The overall composition should be visually striking and professional, perfect for engaging potential customers on Facebook.