Please share your site URL,
So I will check and provide a solution here.
Yes you can change the visual layout of your theme to however you'd like.
1) Duplicate the live theme and work off this backup so you don't affect the live site.
2) Locate the theme file(s) that control the are you want to edit.
3) Make the code changes.
4) Preview and adjust. Publish when ready.
You can even go a step further and make a custom section. We do this for clients that request it, so they don't have to edit code to change it, can just edit sections in the Customize Theme section.
A note about your idea: I think utilizing collection boxes like that is a great idea for your home page, ideally the image shows someone wearing / using your product. I'm personally not a fan of putting images inside the navigation, but that's doable too.
Thanks for details
do you mean like this.
It can be done by doing some code customization. Please take the help of a developer and hire Shopify Expert or me