Geez, that's a lot of anise. I use less than one star in my Wit, usually a blade or two dropped in the last five minutes of the simmer. Hell, when I brewed Wit by the 10bbl batch we used around 3 oz!
Wit needs to be spiced, and it needs to be spiced carefully. Notice the fellows adding 0.25 ounces of star anise to their beers are adding it to Stout. Stout is a bit more complex than Wit before spices are added; Wit can't take as much. Moreover, no one spice should dominate the flavor of Wit - it needs to be a broad spectrum, a blend of spice flavors.
So go easy on the anise. The coriander and peel amounts look all right to me. You may wish to add a bit of paradise seed; the black-pepper and lemon flavors help to pull the different spices together.
Good luck!
Bob