Looks great! If you find you don't have enough flow with just the returns for the gorgonians and put a powerhead in the tank, make sure you use foam guards (the ones made by ecotech were great for my mp10, and eventually fit on my jebao, too). Or just put a bigger pump in the sump 
Does your wife know what kind of seahorses she wants yet?

Does your wife know what kind of seahorses she wants yet?