Well, the drop shadow on the vents (mechanical boxes on the side? idk what they'd be called) and the gradient on the rear green panels on the engine and the & on the cow-catchers make a major difference. I'm sure there's a bunch that'll take me some time to see, too.

It looks lovely on the maps. The back vent is different for this one to make it unique. Tried to get everything right, as close to the real thing as possible. I've also added even more detail but its small stuff. Probably most won't notice it.

Nice! Exactly well done. Very much appreciated!