Help in bringing the site to the ready option

Need help in bringing the site to the finished version, you need optimization for android (module layout with prices and articles) on the main page add two modules, one with discounts, the second with popular products.
It is necessary to remove all unnecessary information from the site, rename the menu into Russian and add text to the relevant sections (about the company, contacts, delivery, etc.).
A little tweak the design, (basket colors, prices, background, modules)
The site should not be stuffed with all sorts of things, it should be simple and understandable for each user, regardless of his computer skills.
It should be simple, understandable, and tasteful.

P.S.
This is my first experience of creating a website, how to correctly write tc. I don't know.
Nothing is more than natural, quality and time are the main priority.
The price is negotiated.
Due to the poor experience of cooperation with another freelancer, payment after the completion of the project, or as a partial payment for the already completed stage of work.
The site is on jumla.