Do some modifications to E-Commerce page and header design.

I have a web site that I designed with wordpress/woocommerce. I am looking to hire an assistant that will be able to handle some of the design modifications to enhance the UI experience along with making things look a bit more professional. These are simple changes that would need to be made. Example would be the header design. I have a design idea in mind, I just need you to set the navigation, logo, banner, and sub-menu links aligned to where they need to be. Product category organizing. I am wanting to organize the product categories a bit more. I can provide you with the live site that I have already in a PM and also can provide some samples of what I had in mind of organizing the different products. Things like these. You would be assisting me with getting the site fully prepped and ready to be launch. This is a hourly gig. I will be needing you from around 5 - 10 hours per week in the start. Once I can get a feel of your work flow, than I can accurately assign you more projects to increase these hours.