I did read and follow the prompts from the doc provided and the home page is missing image placeholders based on the live preview. For example on the home page, our process, collection and about us image place holders are missing under the main image at the top of the page.
Images you get after demo content import can neither be used on a live site, nor redistributed. If you want to find out where images came from to buy the license use image search engine https://www.tineye.com/.
If you miss something else other then images, please state we will help you with that.