Replacing design of an existing photo with a different design

I have a photo of a shower curtain with the background showing the bath tub and all the accessories of a bathroom. I am looking for a experienced photoshop freelancer to replace the design of the shower curtain with a different design but keeping the bathtub and other items shown in the background, in short I need to replace the design of the shower curtain with a different design without removing anything else in the background. Please look at attached photos for more information about this project. I have 12 designs to replace the shower curtain, I have attached a sample photo to explain the project. They photos must be high quality and must require revisions. Upon rewarding the project, I will send the rest of the designs that need to be done. Please message me if you have any questions. Thank you