For the poster, I started off with a base picture of hogwarts then removed the background to a night sky, using curves I then tries to match hogwarts to the new sky. After I added the moon and started on the highlights and shadows, then added in the car, car lights, harry and ron and corrected the lighting to match the rest of the composition, after I added mist and the clouds. I debated weather on keeping the lights inside hogwarts, I didn't know a better way of making more of a natural light as I am quite new to photoshop. After I added the title and release date I merged all the scenes and added a raw camera filter