Improving look of online shop on wix

I own a website with wix store, I would like to improve the design look of online shop.
I don't need you to apply to the website any products what we want to sell, just improving the look.
I am after only graphic look: shop page divided into 4parts - fashion, Beauty, lifestyle and online courses.
Each page should open separately and allow you to search for desire item like trousers of shirt.
The shop page should be design as a regular online fashion show.

What might be a price to make the shop look better without applying products into it please?
(open for negotiation)

Regards,
Izabela