I just looked at the pictures on you sight and the pizza looked really good. It does look like you may have use too much dough and that it proofed quite a bit in the pan.
The color looks even which is good.
Maybe next time try a little less dough putting the topping under the sauce (dough, cheese, toppings, sauce, spice) crank the oven up to about 475 and cooking it about 20 minutes. Also I personally put the pizza in the oven right after it is topped.
I'm hoping to get a camera in the next two weeks or so.