I would improve the navigation. I do not see the reason for putting such a large picture of a girls at the top of the page. What a user really needs is to find the itmes to buy. So I would make an appropriate menu at the top.
Really nice clean design. Just improve product page, adding social share buttons. And change Prestashop icon
Nothing looking bad to me. all those pics are attractive but you have add same pic on slider. I think you should work hard to improve it.
I like the consistent use of color and style. Your website presents your information well, it provides your major information on the first page, which is important. Good luck.