Not Bad!

You're right, that helps a lot.

Nice work

Nice work. Just taking the shine off makes such a big difference. An easy way to "batch weather" cars for the fleet is to fog a bit of "dark dirt" (your choice) over the bottom of the car -- after popping out the wheelsets -- and then fogging a thinned mixture of "light dirt" over the upper surfaces to slightly fade the paint.  It's not the rust dripping from rivets detail some go for, but it makes a string of cars much more credible.