You're going to have to either save them to your computer and upload them as attachments (like you did your last one) or save them to a photo-sharing site like photobucket or flikr. Since your e-mail is a secure site, we can't see the photos you've copied links to.
That being said, I agree that the one picture looks a bit snug. As far as loose rings go, I'd rather have them just a touch big than a touch small.
Basic rule of thumb is to use a stick to measure the horse's mouth and then add 1/2 inch (because that will give you 1/4 inch of space on either side to avoid pinching/pressure).