Open Blue Mailbox with Colorful Letters Inside

A familiar blue mailbox is shown with its door open, featuring a couple of cheerful green and yellow envelopes peeking out from within. A small red flag is up on the side, suggesting it's either ready for pickup or has just received a delivery. The scene has a clean, illustrative feel, ready for any correspondence.

mailbox - mail - letters - envelopes - open mailbox - post