That Tor Araminta Station cover was never a satisfactory one; I remember not liking it at all when the book first came out, although I was excited to see a big, new, unanticipated Vance book.
Why is this, inasmuch as the cover is a high-quality illustration, of an episode right out of the book? Especially where we so often complain of covers that have no discernible relationship to the content of the books they "illustrate"....
Clearly because the cover connotes exactly the opposite thing from a Jack Vance book: it is "conventional SF" to the max-- a distressed maiden, a brave protagonist wielding a ray gun, aimed at a monstrous alien. Everything that Vance is not.

I recall being distinctly struck when I came to the very scene in the book-- it was actually there! And, of course, it was in turn perfectly Vancean.....