Translation of entfalten

The picture I sent yesterday was taken on the first evening. And this morning the email bounced back. The user has already uploaded 3 different pictures of himself, all with the same facial expressions.
I've been working on and off on the dictionary during the entire week, and I'll spend some more hours on it this coming weekend. Sometimes he would get a bit mixed up and use formal Castilian sometimes instead of informal.
I think it is better to send an e-mail. Unfortunately, I have not received any response from you. I have answered your last letter a month ago. I would like to correct your mistakes.