Final Notice Warning Letter Material in a Red Mailbox

Description

The main subject of the image is a bright, eye-catching red metal mailbox with a rounded, cute shape. Its door is half-open, revealing the silver-gray inner wall. On the silver tray extending from the bottom, a white letter is slowly sliding down. Boldly printed in red on the letter is "FINAL NOTICE", conveying an urgent warning vibe—like an important reminder about debts or bill payments. A small black sign on the mailbox side features a simplified envelope pattern, with exquisite details. The strong color contrast between vibrant red and cool silver-gray creates a striking yet slightly tense atmosphere, as if the key letter for unpaid bills or late reminders is leaping out of the mailbox. It fits design scenarios related to debts, payments, and warnings.