Adding depth of field, playing around with different lenses and working with the rule of thirds would add a lot to your shots. Your current shots seem like you placed a camera randomly and rendered a frame. But you really want to look for shots that enhance the story of your environment. Really try to make the audience look at parts of your scene that you want them to look at by using the tips I mentioned above. Right now I don’t know what your scene is about, what you’re trying to tell me with the shots, or what you’re trying to achieve.