Changes to an Existing Website

The client currently has a HTML website for a cosmetics product which needs updating to give it a more professional look. The website is currently running and functional, with functions such as shopping cart/e-commerce platform, CMS, contact us form etc. The updating would need to be to retouch and add pictures, add new sections (with new tabs etc), minor changes to e-commerce platform (e.g option for entering discount codes etc). Full and specific details will be provided later. Please read the project first and write the word "Understood". Also write your questions, steps and suggestions to complete the project with a short description of what you understood.