I put a link to my Stores in every Description.
Here's the coding (you'd have to modify yours)
<a href="https://stores.ebay.ca/CLEMOWBOOKS" target="_blank">eBay Store </a>
</center>
And as always the best advertising you have is your TITLE.
You have 82 characters free, gratis, for nothing, and that is how a customer who is already on eBay and theoretically wanting to buy finds you
Just a quibble, since you seem to use Signature Confirmation, perhaps you could make it sound like a benefit to the customer "We use Signature Confirmation of Delivery for your protection." for example, instead of making it a demand .
