The cover art - Some more thought should have been put into deciding the cover. This cover has NO connection with the story. That said, it was a wonderful read.
Sure, I could pick on bits like getting the year of the revolution incorrect, but hey… this is fiction after all (and altering the timeline for the revolution suits the plot of the book). It didn't bother me at all.
What did bother me was the not-so-subtle attempts of trying to depict something divine/supernatural/magical/paranormal of sorts. Thankfully there wasn't too much of it, but those bits DID bother me, considerably.
The coincidences and chances in this one didn't seem forced. Somehow, it all seemed to work reasonably well.