Great-looking job on a great-looking bike. I really like plastic fenders because they stay clean, are quiet, and don't dent.
I'd just suggest that once you are sure you are happy with the adjustment, you trim the stays so that they end just past the fixing bolts without protruding beyond the brackets. The little black caps look OK but eventually they come off and get lost and then you have a sharp(ish) point sticking up that can scratch you during handling, or worse in a crash. (Obviously if you know you will need to use larger tires on occasion then you should ignore this advice.)
Enjoy your rainy fall riding!