I can remove the background from 3 of your images and then convert it to a PNG image with transparency so you would able to add your own background that you like (using an image editing software of your choice), and if wanted, you could also provide the image(s) you want the background to be replaced with so I can do it for you.
Feel welcome to contact me before ordering the service if you have any questions for me.
Please note: Results can vary depending on the source photo I'm given to work with. If I make a mistake or misinterpret something in your request when you ordered the service, then I may allow for a revision request.