Use Good Photos
First thing’s first: make sure to get your images right. While it pays to hire a professional photographer in some cases, it’s not necessarily the key to success. You can read Ecwid’s article on simple photography tips to get you started, but here are a few ideas to keep in mind:
Make sure your photos reflect how the product actually looks.
Have one main image with the best angle of a product, but include at least 3-4 different images for customers to scroll through.
Standardise the size of your product photos keeping the aspect ratio and orientation consistent and/or choose background color that can blend in with the template.
via Simple Ways to Make Your Products More Appealing to Consumers | Ecwid: E-Commerce Widgets.