Hey Yin,
I am a "bit" late to the party, but great bag!
I have a question about the way you made the shoulder strap. I was wondering if you were not afraid that the leather would stretch at the very end, where there is only one layer passing through the d-ring? And I was also wondering how the strap is holding up after some use.
I am working on my first bag project right now. That is the reason why I ask you.
Thanks!