I really enjoyed "Venus of Dreams," about the beginnings of human settlement of Venus, and I immediately ordered the sequel, "Venus of Shadows." I gave up on it after about 200 of its 600+ pages. It takes a long time for the story to get off the ground, both literally and figuratively. Much of the early part of the book is review of the previous book. There's little new science or technology (at least as far as I got), just some details about the domes on Venus. And I found the main characters flat and uninteresting. Malik is strikingly handsome; Risa is good at mediating conflicts; they both have trouble with intimacy; and I didn't care. Bummer.
Read "Venus of Dreams." Skip "Venus of Shadows."