Are photos or video worth it on the English menu?

Yes, on the dish the English line is not enough to explain, with a photo of the real plate. Video only if the gesture does not fit in a sentence, and not across the whole menu. Write the line first and see whether a question still remains. In Madrid everything is filmed with English captions and on the terrace it does not play, and neither does the price show. The card carries the line and, if needed, a photo, with the price visible.