I prefer pictures from the beginning to the end of the project. Not too many pictures, but it is good to take a picture of the different steps so that potential customers can see the professionalism.
Images should be accurate. In general, it is better to put pictures on websites with a clean background. In restoration photos, this is very important. It would be good to take a picture at the same spot if possible.
Here you can write anything you want “This project was interesting because I had not done such precise custom work…etc”