So a couple things. One I think these are awesome.
Two I made an Asterion (3rd Party Super Genius Games race) Beast Kin + Sanctified Athlete and she is going to be a bruiser and one of my all time favorite characters. I didn't really have character concept for a monk or a barbarian until now.
I was wondering if the Sanctified Athlete should have the Monk bonus feats altered? Having looked at my build which I think is what you were going for (Vital Strike focused) there are very few Bonus Feats that I want to take. There are a few that are good for a normal monk. However a single attack Monk who doesn't want to do combat maneuvers doesn't have a lot of options.
Ideally I think Vital strike would be good but maybe just things like weapon focus or power attack... Martial feats. If it is something you are willing to look at then yay I was helpful!