improve design of my prestashop website

i have a prestashop website theme that i not really happy with the design.
Basically the job is not hard, just need to correct the color and change the button style and font style for text.

I need freelancer work closely with me and follow my requirements :
- top line website change color from black to white
- the button research need to change to be a button with box to type the search
- the button "Cart" need to change to show the word "CART", for visitor easily found them cart
- top menu categorie need to change to be white color and when scroll on categorie box need to be blue
- change the font of the text for the home page and all page of website, i need a more better font text
- testimonial text from grey to white, background light grey not black
- Blog text change from grey to Blue
- banner before footer need change font of the text and bold text to be read easily.
- all the categories page or link, when scroll need to change from red to blue
- on product page i need add space in the text and change the font of the text
- improve the design of all button add to cart on the website