These cards are awesome!! I’m not sure what the original resolution is, so maybe it doesn’t matter... but all of your uploads are being resized by Pinside. If you’re losing resolution, it sure would be nice to have the original with “no scaling” selected when you upload.
Again, might not matter if your resolution is close to what Pinside is resizing at...the default resizing setting is “medium” which gives a max of 2048 width anyway.
Edit: I see post below that you’re at 700 pixel width. So I’m assuming the resizing doesn’t do anything. But I don’t know how pinside’s scaling algorithm works, so just a guess. Bottom line: beautiful work!! These will look great on my JP2 premium next month.