WIX Website images and layout improvement

I have a WIX website which I need someone to look at.
READ. I am not looking for a new website, just improvements.
Layout improvement, images and navigationbar functionality.

Images improved according to subject.
Layout improved where needed
Vertical naviation bar to scroll to the correct area on the site.

This is a onepage site.

See website at https://yvestheunissen4.wixsite.com/mcmv5

Can give an example what i based it on.

Contact me with questions.
Budget is limited.