Foreign Land is a bit of a conflicted book; the plotting, characters, and prose are clear, but at the same time the grander plot seems a bit lost in context of purpose and theme.
We begin with a colonizing community crash landing onto a hostile planet with incorrect information. The wife of one of our main characters is dead, leaving him with a son, and so I settled into a story about survival and a bit of an exploration about grief (which was present, but a bit blunt, existing mostly as occasional mentions of said grief.) Then the story evolves, as if their wont, but not in a way that compliments this start, becoming in its last third more of a horror story. There's other relevant moments in the course of the story that also defeat the 'survival despite tragedy' narrative, but have no connection to the horror narrative. The one consistent theme(s) of the narrative is loss/tragedy, which makes for a mostly joyless read outside brief moments of comedy, but the loss and death is so prevalent the story grows too indiscriminate for such a personal theme.
None of the individual scenes or moments are bad, and some are good (the horror scenes are generally good, except they're not really written to be scary) it's just they don't synergize with each other on a conceptual level (the horror scenes are structured like horror scenes, with an invulnerable, trans-dimensional monsters hunting a group of survivors through the crashed wreckage of a ship and picking them off one by one, but again its not written to be scary.)
Of the core elements, the characters are probably the weakest. Again, they're not bad, but they're a bit simplistic, and the most morally/internally complex character isn't explored enough to really delve in the rich tapestry they offer.
There's some cool concepts, like traveling via the fourth dimension, but ultimately the book just struggled to form a cohesive vision.