Are my GDPR data access settings compliant with UK law?

I have an active banner on my store from a Shopify partner. I have the normal policies pages and also if customer request for data to be removed there is a report page where I can do that. Is there anything more I need to do to be compliant with the law? I only sell in the U.K. My store is here. Any advice welcomed. I am happy with my app banner from a respected company that has been great.https://click-a-gift.com

ThAnk you for such a good reply with advice to match it too.