So with the dawning realisation out the way (at least I hope so). I had to move on. I was clear the two elements weren't working together so one had to go.
If I'm honest the decision was an easy one: Keep the Autumnal nature elements and lose the rest. This was mainly due to the easy of researching it and the amount of photos I already had. Where as collecting first hand research of an oil refinery or steel mill would be next to impossible.