Neat and effortless writing à la Hemingway is very much not George's style.
Indeed, at times I was under the impression she had gone over her whole novel, all 800 pages, sentence by sentence, to replace all the simple, everyday vocabulary with Latinist polysyllables.
Add to that her obsession with exhaustive background details for every single character, however minor, and the text you end up with is rather cumbersome and stiff.
Fortunately, she is also a master of convoluted plots, which generally makes for an absorbing read (although this one was a deception as to plot; I had half of it figured out after a modest 200 pages).
Still, everything I recently wrote about 'Payment In Blood' of course remains valid.