Shopify Theme Customization

Hello

I wanto modify my templates product and collection pages same as the House of The Spoils.

This is my product page:
https://solrado.com/products/empire-state-of-art

This my collection page:
https://solrado.com/collections/all

I am trying to get similar layout of following website:
https://houseofspoils.com/collections/all-prints/category-adventure#MainContent

I wanted to have similar header for collections and similar swacth for products:
https://houseofspoils.com/products/harry-mark-girls-just-wanna-have-fun?variant=39439196160062?horizontal

Please see attached screenshots to understand better.
It is very urgent for us ! We have only a few days