Over the course of a week, post roughly one piece of content a day (5-7 posts total) that revolve around a theme and together tell a story through text, image and video.
To learn more about telling a story visually, check out Unit 3 of the DS106 course.
The images and video do not have to be original, in fact probably shouldn't be unless you have lots of time on your hands. Instead, try to find existing content that supports the story that you want to tell.
Use your blog post to plan the types of posts that you will make as well as to organize them chronologically,