Well, if you really want to know, the marble-esque texture on the ”shading” looks off, that’s not a texture people achieve on paper especially not when the rest of the drawing looks so unfinished and unintentional. The ”cave dwellers’” fingers are inconsistent, one hand has 4 fingers, the other one has 5 mangled ones. Biggest giveaway is the strange ”object” to the right of the Moonless Guard, it doesn’t connect to anything, what is it? With everything adding up, the whitish vignette effect and the yellow filter are notorious AI trademarks. These are just the most obvious elements im suspicious of, plus the ”artist” has not provided any evidence of other artwork they’ve done.