Im not good in giving reviewing.. but i guess u site contains too much graphics and less words? First time i enter your site im thinking 'Is this site really selling stickers? What must i do to buy the stickers?
U should add more words explaining what u have to offer your visitors and range of products you have.

Or maybe u can displays all stickers in front page? Maybe Make it like a gallery.. So visitors can have clearly in their mind what product u can offer them..