Scariest detail: this image was ripped from the creator’s site and vandalized (edited to remove the watermark), then reuploaded for viral fame without so much as a mention of the artist’s name.
SOURCE: http://jeffleejohnson.deviantart.com/art/Blue-Plate-Special-661961724
That said, the earlier observation about milk being $15 is off - artist confirms this is based on a 1920’s diner, so the price would be in cents.
(http://comments.deviantart.com/1/661961724/4375070065)
The table under the journal is lacquered with ants.
The person holding the skull-creamed coffee paints the underside of their nails. Either that or their natural nails grow red.
The journal’s writing, intentionally made hard to read and partially obscured, is somewhat of a cheat to all the things amiss in the scene. (http://comments.deviantart.com/1/661961724/4372574544) I can make out: “… and eyeball … have to think he is less strange than the horrifying creature that seems to have inhabited the cabinet behind him … all tentacles and teeth … (obscured by cup) … Where in the world can be found such nightmares?!”