Watch out for _master1200, it's been downscaled *and* resampled to 1200px width. This doesn't affect pictures that already are this resolution or less but in this case the original is 2048x1536. Downscaled picture sets will both cause extra database pollution and a possible replacement in the future but if you manage to replace it yourself in time that'll limit the damage.
I've been thinking of adding this to the wiki but EH isn't supposed to be a booru so the community is not going to cover every single file system used in public imageboard stuff getting reposted.