Need to improve look of the shopify web site

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Need to improve look of the shopify web site
Site is adult products, if you are religilous and dont like to see plastic things, sorry about that....
I am using shoptimized theme and need help improving collections look as well as product page.
Collectons:
Collections are overwritten by the app Product Filter & Search. There is a CSS and obviously liquid files that can be modified.
Need boxes around products. Better colors. Better product titles. Better sorting look. Better price fonts. Better add to cart button etc... Just better look. Need it more appealing.
At the bottom I need more spaces between page numbers as well as load more button that will load next page. At the last page, load more should say Load Page 1. If there only one page of products, do not show load more button.
For the product pages, I need more compact elements so that there not that much of white space and user does not have to scroll miles to see info. Your call on that, show me examples and I will pick what I like.
Skills:
CSS
, HTML
, Website Design
, PHP
, Shopify

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