Hello! I was wondering if I could get some advice. I have watched the YouTube videos and created my posters. I am at the stage of putting my posters into mockups. I have put my posters into mock-ups using canva and I also purchased a digital file of mock-up frames from Etsy. Using the canva mock-ups and the purchased frames, when I then upload the mockups to the etsy shop manager area, they all appear to be blurry. I've looked at other etsy shops and they have clear, crisp images. Has anyone got any tips of how I can rectify this? Thanks in advance.