@Tim I just uploaded a Merch T-shirt design for review! “Happy Feelins: Soft and Warm Bear Christmas Funny Shirt” for $19. I made it with the Over app. I exported the png photo to my phone and directly uploaded it to Amazon from there. I finished 99% of the upload and form writing process from my phone and then did the final submission on my laptop since it wasn’t working on the phone for some reason. 🙂