I worked on this project with the Cosmopolitan.fr 's Web Editor and a Project Manager.
I had to propose an attractive, clear and optimized design. The constraint were to respect the Cosmopolitan Brand Guidelines and to respect the pictures dimensions (in terms of proportions) already used on the website.
I started to propose a Home Page web design, refering to the Website Home Page. Based on this artwork, I created the other pages design (including the pages for 404 errors).

The design (including validation and rework) was about 15 days.