Ok so I have opened up a bit the main area so that the background is more visible. That container there was blocking it too much. Now the railhoist area is more visible. I still need to tweak few material properties and add some high frequency detail to the foreground by using decals. Oil spill with a nice reflection, some concrete cracks and some random rubbish here and there to break it up a bit but not too much so that it doesen't get too noisy. Still not too sure about the wooden crate placement between the forklift and the train car. Will need to do a quick paintover to see what will work. Need to also fix some rendering issues here and there. Getting closer !