Im not sure how these images will look if your screen isn’t colour corrected as they are quite subtle. I started to use the same technique for every shot I do, basically setting the camera up on a tripod on the centre of the bench, making sure its exactly horizontal using the spirit level built into the tripod, setting the exposure using the top dial on my Nikon D700 and taking the shot without looking through the viewfinder to compose it. By doing it this way (hopefully) the images should be similarly composed and the position of the bench will dictate the outcome of the image rather than myself composing the image within the camera frame.