I would add a short paragraph describing what, when and where the images below are all about.

Taken all together description should be about this long.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque aliquam, enim ut consectetur dapibus, erat ligula pellentesque orci, in ornare justo odio sed neque. Quisque consectetur purus sed eleifend venenatis. Vivamus feugiat sed ante et accumsan. Quisque augue libero, ornare sit amet augue sit amet, auctor ullamcorper orci. Donec vel nisl magna. Sed mattis tortor eget lorem.