Looks quite good... right out of the production line of the factory.
You can give it a much more real-live-look: aging and weathering the wodden boxes and gas-cans, giving some shadowing to the baggage, applying some dust and dirt to tracks, wheels and suspension and some dusting and used-look to the rest of the surface.
Then you will have a real good close-to-reality model.
I beg for pardon for my open words.
Norbert