Concept arts/artwork for WWII video game

At least 3-4 concept arts/artworks needed for kickstarter campaign. Project is focused on a video game based on the relations of one of the Holocaust survivors. Game is inspired by his journals and what happened from his perspective. Graphics needs to be gloomy and dark. All kind of pictures of Auschwitz are available online for more references. I only attached those which will give you an idea of what kind of parts of the camp I want to include. Those are the concepts/idea for the artworks: 1. Prisoner (main protagonist) hiding behind the wall during the night. Wall he is hiding behind is the one of the barrack. He is on the left and covers almost half of the picture. Other half (to te right site) is upcoming German soldier/guard. He is looking for something as his dog (German Shepherd) is barking into characters direction. 2. Main entrace/gate to the camp with infamous sign on it "Arbeit macht frei". Scenery is happening when our main character is walking under the main gate and looking up on the sign above him in the crowd of other arrivals. They dont wear they camp outfits yet just regular European 30's clothing. 3. Sleeping barrack full of very skinny, almost starved to death people. Overcrowded and dirty. It is middle of the night and scenery happening from our character's first person perspective who handles german Zippo lighter looking for something. 4. Selected prisoners are put to work in the Crematorium. I think it is self-explanatory. I want to see how those 4 will turn out and if good enough I will request more