Show Your Work!
I love being able to create mockups for my own site without having to pay a lot of money for stock images or for mockup sets that don't always suit my needs. I have found them to be a tremendous selling tool on my site as well as offsite when potential buyers want me to mock up sets of my work so they can see how they look together.
I'm happy to be able to share my process, which can all be done right in Affinity Photo for iPad, without ever having to leave the app or purchase anything else.