Help trying to create a "wavy" ceiling

Hi everyone, I am trying to make a ceiling that has some sort of wave pattern to it. I have a wall partition that I want to reflect on the ceiling through the wave pattern, meaning I want the wave to more or less begin at the top of the wall, and based off the distance, decrease in size and length
I also attached two pictures of what it is that I am trying to do, and currently have. Any help you all may have would be greatly appreciated!