Improved user experience of add to cart button, side cart and cart page

Hi, some days ago I put a request on Customized Services > Submit an offer.
I want to get a quote for a development in my Biolife Theme to improve the user experience but I didn't get answer.
I saw that one of the admins is answering here the tickets.
Can I put the details on what I'm looking for here? or is ok just my request on "offer"

Please I need an answer to continue my page