What does Proofs mean on the photo?

This is a watermark an means the photo is ready for print but not printable as shown.

Does Proofs get printed on the photo I order?

No. It is only on the website view. Your photo will be beautiful with no proof watermark.

What is the writing across the photo?

That is an additional security measure with a proofmark imbedded into the photo, which will also not be printed on your photos.  This helps prevent photo theft.