Your first step in the store setup process is to upload your company logo and a cover image.
The store logo is a square image that will be displayed on the left-hand side of your store.
The banner is displayed within the store as a wide rectangle, above the logo. It is also used as a store image that distinguishes your store from all the other stores within the marketplace.
Picking a store banner is difficult but make sure to pick an image that will look great as a banner inside the store as well as outside the store. The better the pictures you upload the more likely your store will attract customers.