Are those common topping in Finland? 
Looks like you got a really good caramelized crust. How'd you like it? Typically sauce goes on top of a DD-it will protect the cheese if that matters to you.
Pretty common, but maybe not the same time all. I think one of the most liked combos are tuna, ham and pepperoni also ham, pineapple is very much liked.
It was pretty good, but i dint have another DD to compare, i have to try real DD dough next time, i just had basic NY dough on freezer so i just used that.
I put cheese on bottom, middle and on the top = 400gr of mozzarella! I think DD style pizzas are easier to make than NY style.
I baked little to long and the cheese turned pretty brown i think, but still very eatable. Used only one can of tomatoes not sure if its enough.
I like this thick style for a change, you don't have to work fast like NY style so this is allmost relaxing. Just bake the pie slowly and enjoy!