I really need some help with turning this image from a square portrait image, into an image of this exact shape and size.

[![enter image description here](https://i.stack.imgur.com/pVo9v.jpg)](https://i.stack.imgur.com/pVo9v.jpg)

I need to turn this picture above, into this shape and size. It needs the exact same size, too, but I am unsure how to do this using GIMP/Photoshop.

Can someone help me, please?

[![enter image description here](https://i.stack.imgur.com/Jdawv.png)](https://i.stack.imgur.com/Jdawv.png)

The dimension of the picture above is: Dimensions: 1206 by 1094 pixels

However, I am super confused how to get my van picture, into the shape and size of the bottom picture.

Thanks