Modify Shopify Store $100 Fixed

I have a jewelry dropshipping store on Shopify which has just been recently set up by a professional website builder, but I haven't yet started promoting it because I need to modify the store completely. 1. I want the store's background images to be changed with better pictures of women wearing jewelry that match the products in my store. 2. I want to edit the theme code to configure and customize it so that the product page and the checkout page will look exactly like that of this store here: https://www.getnamenecklace.com. Furthermore, I would like to copy every detail you see on their product page and checkout page. 3: I want to add these details: "FAQs", "Jewelry Maintenance Guide", "Jewelry Sizing Guide" to my store's footer. I would also like to modify the information about the Shipping and Return policy in my store. I suggest you follow the information about the shipping and return policy on this store ([login to view URL]) since they're also using the same vendor/manufacturer as my store. Furthermore, on the background images please add some catchy phrases and texts to make the jewelry store look more interesting and professional. For example, you can put some texts like this on the background images: Personalized Jewelry That Tells Your Story; Make it personal & Express your sentiment.