How to Upload a Shop Banner to Your Etsy Site
Placing a banner on your Etsy site helps you establish your brand. You can create a banner yourself or have a professional do it. Once you have your Etsy banner made, uploading it to your site is a pretty basic process.
While logged in to your Etsy account, click the Your Account link along the top of any Etsy page.
The Your Account page opens.
Click the Info & Appearance link, under Shop Settings, on the left side of the page.
The Info & Appearance page opens, with the Info & Appearance tab displayed.
Scroll down to the Shop Banner Image section and click the Browse button.
Locate and select your banner file; then click the Open button.
Click the Save button.
Etsy uploads your banner to your shop.
To view your banner, click the Shop icon that appears in the header bar.