I recommend you start by making a list of websites where you have shopped or browsed and list what you liked and didn’t like about each. It won’t take long before you begin to feel confident about the direction you would like your webshop to take.
Vine (and Instagram Video, fwiw) allow everyday folk with smartphones to make video without the pressure of delivering more than a few seconds. It’s engaging, it’s easy, and you can always watch them on mute (I do).
This top 10 list from CreativeBloq.com is a great reference for new standards of web design. My favorites are Responsive Design, Static Headers, and Circular Design Elements (honorable mention to Typography-led Design): The 10 hottest web design trends of 2013 -CreativeBloq.com