My Wordpress site fully reviewing/testing/improving

I have just had my new site and would like a wordpress expert to fully test and put together a recommendation of how it could be improved. This is a luxury website and so needs to be super slick and super professional. I'd also like to be able to plug-in ecommerce for our partners who have goods to offer through the site such as the phones/tablets section. The products need to be fed into our site though through from the partners