Create professional responsive Newsletter Mailchimp Template

Hi, I'm doing the newsletter for my online shop but I want to have a new great & professional template made on/for Mailchimp. This newsletter should be perfectly responsive for Tablets, Phone and Desktop. It should have a placeholder: Introduction text, Banner, "Buy now" button, items+price and titles. It should look modern, clear font, using our corporate colours I have 5 languages, but 1x template should be enough so I can duplicate and translate in other languages myself. Some designs skills would be welcomed, here is our website: [login to view URL] I will need you to create a "Buy now" button that looks really good and can attract "action" I will have to translate what is written on this button. For the development of this project a Call is mandatory so I can share my screen and explain what this is about. Attached some of the current, latest newsletter, so you can have a better representation. I Thanks Martina