Build one similar to this http://www.jiqingtang.hk/
1) Should have original beautiful graphics, will advise the layout, tone, look and feel.
2) Shopping cart with online payment support, incl. alipay, paypal and credit card.
3) Membership registration, ability to send marketing email to subscribed customers.
4) CMS required, admin user should be able to change page content! Best to develop using Wordpress, or suggest the best framework you are using.