It's at least food for thought for what I could try. Been a long time since I shot machines. If I were shooting the first one, I'd have the man stand back, and get an operator to swing the boom to the front above his side and drop it where he could hold it. It could make the machinery seem more impressive. Not like the example below where the human is set back, but with both in the foreground to make the boom stand out more. The light sucked this day but I saved the image for future inspiration.