sorry to be a spoil sport, but such a design would worry me.
it feels to be "busy" and overly diffusive, and those ceiling things seem unpredictable (if so, I woulda done them with some absorption too. integrated with the diffusion. how? dunno).
and this diffusive stuff seems to close and crowded to listerning position.
from the pic, the list post also seems too close to the front wall.
these are just worries, I honestly hope it turns out the best.
I hope you also have some absorption on those angled front walls.
in such a thing as yours, I would have liked to test and hear before hand so there won't be unwanted surprises.