So I know it is largely due to the pseudo-forced perspective that the sand worms look so tiny…but why would the artist want us to see them as so tiny? Doesn’t it sort of ruin their awesomeness? But even without that, they look very slender, the one in the back is slithering like a snake–worms don’t move like that. The more I look here it seems that the worms were modeled after photographs of snakes.
On the contrary, I think the artist misunderstood the descriptions, and assumed these were your standard-sized worms. Then, when he read the passage where the worms tower over people, he had to draw those tiny people with capes at the bottom right.
If you look VERY closely, there is evidence of a TING! on that blade.
I see this was written in the days when the author used his full name, Frank Herbert Classic.
“Winner of science fiction’s Hugo and Nebulas awards!” Those are my favourite Hugo and Nebulas awards. The Hugo and Nebulas awards for Crime, Romance and Hypnotise-to-get-slim books are rubbish by comparison.