Your pizza is close to the fire, and your dome is far from the fire, so your crust burned before your toppings were cooked. And, from the pr0n, that looks like a thick pizza, so you really need time for it to cook from above, without burning the bottom.
You need to reduce the heat that gets to the bottom of the crust, so that the heat in the dome can cook the pizza. A stone will help a lot. But, you may need more than that, considering how high your dome is. If I were cooking a pizza in a CI pan, I'd put the pan on top of a pizza stone.
Running your coals around the outer ring of the kettle may help, too.
Basically, you need to try to balance the heat from the bottom more with the heat from above you pizza, IMO.