Different Banners for shop catagories

Hi, you helped me with a continue shopping button on my squarespace website a few weeks ago. I have a new request. I have a shop on my site but it seems all the category pages within the shop are set with a standard template. I would like to adjust the information on a couple of the category pages so they are different. Are you able to write me some code so that I can do this. My website is doghandlertraining.co.uk, and

https://flounder-prism-ejz7.squarespace.com/config/pages

The page i would most like to change is the Design a lead category in the shop. I just want a banner like the one attached on that page but if I do that it puts it on every page. I hope this makes sense?

I look forward to hearing from you

Lucy