A difference in the style

The following four images are the front covers of the Japanese editions of two well-known science fiction novels (two each, because novels are frequently split into two volumes in Japan). I have crudely blacked out the author’s name, so as long as you don’t sight-read katakana, you can examine the covers and try to guess which novels they are.

two well-known SF novels

The Japanese and English titles are below.

The translated titles are, respectively, A Blaze of Distant Gods and The Farthest Galactic Fleet. What are they?