Re-vamped Etsy listing

Re-vamped Etsy listing - student project


So I re-vamped this FIRST listing of mine, I will soon add more listings and make sections for my shop.

As it is a digital file (printable PDF), I thought I would rather show digital pictures than photos of what the printed - physical document would look like, just to make it very clear that it is a digital file and not a printed document. However I don't know if it would be better to use some kind of mockup... ? If so, do you have any suggestions of places to find mockups for coloring pages? I have done some research on CreativeMarket but I can't seem to find anything that would work.

Here is the link to my listing, any feedback is very welcome: