Creating the Pergola render is now officially finished! I have completed the roof and placed it into a rendered environment.
I then added a picture as a background, aligned the camera to fit and put in an invisible plane for the shadow. I also placed some invisible planes where parts of the images should be in front of the pergola (such as the clothes dryer). The invisible planes made the parts of the render where they covered invisible as well, but showed the background behind them.
If anyone is interested in how I made any of the different elements of the images, or you have a suggestion or thought about them, feel free to comment below.