Shopify Website Guidance / Designer

I have already built 45% of my current website with own graphic designers, but there are some sectors where assistance is required. The first role of urs would be to suggest new things that could be added in the website, to improve the user interface / design. the second role is to create some design for the testimony section at the home page. The third and final role would be to create the info page in the website. this includes: About Us, Contact Us & The Store locater. Everything will be furthered explain once the price and designer is set. Waiting for good applications :)