Instructions for you:
This page is just a demo of some of the main "blocks" in Shopify we can add to pages.
Pages in Shopify do not include: Products, Collections, Homepage, Cart, Checkout. Those have their own layouts.
Pages simply mean the About Us page, FAQs, How to guides, and other static content.
The images used on pages like this are all flexible by design. You often don't need to set or think about the resolution of an image as Shopify will standardise them when they're displayed. The only important factor is to use similar sizes (i.e. squares or portrait).
Use this text to include important information that you'd like your customers to be aware of when contacting you. You could include shop hours, email response times, other ways to contact you, or just some friendly text to encourage your customers to reach out.