Mobile and desktop responsive home page (see picture)

Hello, I would like to get the same result that I shared in the attached image.

Currently, the image (at the top of the homepage) is not even complete as you can see on my site.

How can I get the same result as the attached image?

Thank you very much for your help.

Here is my public share link: Webflow - CFA CONSEIL



Thank you so much for taking the time to respond on video! It’s perfect.

I learn every time I come to the forum. Thanks for your involvement.