I am using some repurposed cardboard boxes as the storage solution for my DM collection (one box per set). I would like to make it nicer by adding proper box art. I thought about putting the original collectors box art on them, but the images of them I found on the web are quite low resolution.

Maybe somebody with an access to an A3 scanner or even just a camera who owns the collector boxes would be willing to provide me with the pictures (just for the Marvel and DC sets).