You can text images for a premium service that includes a phone call too.
There may be an +Add Files button or if there is a toolbar with a paperclip icon showing above the box where you type in responses, then follow the steps on this link for sharing photos:
You can try emailing your images to *****@******.*** and write “For Nora/Antiques” in the subject line of the email.
Photos sent by email do not arrive to me directly nor instantly, they get forwarded to me by admin.