Add your topic pages as sub-pages. Assign friendly URL to each topic page as .../topics/topic-name.
In grid below, replace images, adjust hyperlinks for images, edit title link text [TOPIC 1] etc, adjust hyperlinks for title link text, add description text, delete unused topic placeholders.
Talk to your Champion if the image you want to use is not yet in the Image Manager Shared Library.
Delete this instructional text before you publish your subject guide.