Should photos live with a supplier or on the venue's own site?
A supplier is enough if the shift can hide a card with a photo the same day, from the phone. The venue's own site is needed when the images have to live on the venue's domain and the supplier allows neither that change nor decent compression. Test hiding a photo and changing a price from the floor's phone before signing. In Madrid the supplier takes a day to pull a sold-out video and the table keeps ordering it. Whoever leaves the photo and the price in the shift's hands is the one that stays.