These are the cover artworks for Neuromancer, Count Zero, and Mona Lisa Overdrive by Josan Gonzalez (Deathburger). The covers were used for the Brazilian reprints.
Deathburger makes a bunch of cyberpunk art in this style and he posts a lot of it to his Instagram page.
Most of The Expanse are pretty cool. I saw a talk about book cover design from someone working for a major publisher. A lot of it is trying to convey the book itself through the cover.
There were 3 main types: drawn art for conveying a specific kind of setting or theme, photography often for lead characters or media tie ins, and abstract for conveying a feel. That's grossly simplifying but it was interesting.
I like Al the expanse covers, but can never suss out how they apply to the story
They don't usually directly. I think they are just stylized ships and platforms to evoke the feeling of space battles.