Hello Alexandra. I am painting with a water-based Gouache, not acrylic- based so it can reactivate when trying to touch up sections. My art has a black painted background so no need to remove the background. However, the black paint mix seems streaky on the upload. I struggle with how to touch up the smudges using photoshop (see the berry with the black smudged edge). I am also confused by the scanning figures...my computer shows PPI not DPI. I used 600 PPI when scanning and maybe that is too high? I find the black backgrounds shows a lot of white dots in it that would be difficult to correct (they don't seem to show here though). Also, if I were to upload it to redbubble, do I need to create my own mockup frame? So much to learn, so I am trying to start off simply. Wonderful course, I think it is from 2018 and were are in 2021 now so maybe my photoshop version is quite different? Thanks so much in advance!