Mock-Up Makes
Great class in Affinity Photo 1, Desktop. I'm using Affinity Photo 2 on the iPad so I'm also searching the AP2 manual online to figure out where everything is. I've only used Affinity Photo for resizing photos, so it's all new to me.
I followed the Poster lessons and was able to create a template for mockups:

I tested it out on another illustration:
I think I'll adjust the opacity of the texture layer.
Thanks, Jeremy for the lessons and tips. There's a lot packed into this course!