Guild Wars 2

I noticed when I choose ‘air’ when creating my elementalist I obtained a ‘storm eye’ and I asume if you choose fire,water,earth you get different ones? what are the main point of these, and what was the main point of me choosing air, and can I change the one it gave me? (: thanks

It is just cosmetic. The only way to change/get another one is to create another character or recreate the one you have. If you create another one it will require a couple of transmuting steps to transfer it over.