Add the actual alt text
When adding alt text for pictures always use actual text for that picture. Never ask yourself what would be the best to help my rankings in the SERPs (search engine results pages) Always do what is best for your visitors and never add words that may fit in but are not the best just because you think you will do better in the SERPs The only reason for alt text is for visitors that can not see pictures. If you are adding a lot of pictures from and event or something and don’t have alt text for each one, don’t add anything. Always create content for your visitors not search engines.