I'm not interested in buying, but just some words of advice.
Add a Terms of Service (ToS) to clarify the terms of the transaction. Helps protect you and the eventual customer from questionable problems.
Include more pictures and evidence that you are the owner.
If it's true you can just recover it after the sale, as one member posted, provide evidence on how this isn't the case. No one will buy it if they think you will just recover it and scam, obviously. So provide proof or explain how the buyer can be assured the account will forever be his. Is he going to receive the entire email or whatever associated with the account, etc.