Mail Art for Ellie

So I am on easter break now, and get to spend a few weeks at home in London. I thought it would be a good chance to help my friend Ellie out with her post project. She made me a piece of mail art last time I was at home, so I made one back. I wanted to challenge the postal system a bit so i used different paper to partly cover up the address. The postman will need to interact with the piece in order to deliver it. I hope it gets to her!