I am assuming you are referring to this
Scans are not always deleted right away, even if there's a problem. We mods don't take deleting things lightly; we often
debate and agree on a deletion before removing something.
Sometimes these discussions take a little while.
It was deleted for two reasons:
1) Quality was a problem. While it's technically above the minimum size requirement, it's ultimately a thumbnail. In
order to be shared on Tumblr/Twitter, it was greatly sized down which compromised the image (note the jagged lineart in
their faces, for example).
2) The source was the other problem, and honestly the deciding factor. The person who runs the Tumblr/Twitter/blog the
image is from (Nat), is a long-term, still active member of MT. Pandemonium91 and I had assumed her site(s) were on the
"do not upload" list, but apparently that's not the case.
Even though she didn't complain, we feel that if Nat wants her scans on MT, she would upload them herself.
This is no fault of yours; her site(s) should have been on the "do not upload" list and we will fix that, as well as remove any other
scans of hers.