Removing this laptop image

I’m struggling with removing these 3 laptop boxes on my home page with a just a picture(while also keeping the lightbox). The laptops just aren’t very relevant. How do i go about doing this, while maintaining their positions?

Website in question is: http://www.thecabinetshop.co.uk

Any help would be appreciated. Thanks!

The laptop frames are in CSS.
Just remove the

and remove in your css the .notebook .screen border radius and background

Worked perfectly. Thanks!