I would go brushback ventilation. I think that is what I received and you can comb the hairs forward if you want with no problem, but it goes back easier if you want it to. get a sfs lace system with a back exposed hairline. That density looks pretty thick. So probably medium/light or higher. Probably more like medium density. But you need to have thick sides. At your age you could get higher density, but you need to make sure it blends in with your side and back hair.