Whizbang Dustyboots
Gnometown Hero
This isn't exactly the Russ Nicholson art book I was wishing for, but Magic Realms brings together classic British fantasy art from across the many Fighting Fantasy books.
It's coming from Unbound, whom I've got mixed feelings for (they seem to love to announce books without a clear idea of how far along said books are, which is something customers always want to know), but between Ian Livingstone's and FF historian Jonathan Green's involvement, the book (coming some time in 2024, per the FAQ) should be a good one.