Boris - damn fine effort, if I may say so.

One quibble (on second look): You seem to have the inner surfaces of the tracks in two different colours: Rusty red-brown on the outer edges, grey in the middle - with a nice neat demarcation between the two. I think it'd look much better (and far more realistic) all rusty.

- Steve

Your thought is correct, where the roadwheels run over the track, there shouldn´t be any rust. Tracks in use, generally have only a little rust in the corners where dust, mud, sand, etc. cannot "work" as an abrasive.
Tank tracks are like the break disks on a car- when in use no rust, but after several hours a little rust starts to appear, especially when it´s raining or the air is very humid.

Quoted Text

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Your thought is correct, where the roadwheels run over the track, there shouldn´t be any rust. Tracks in use, generally have only a little rust in the corners where dust, mud, sand, etc. cannot "work" as an abrasive.
Tank tracks are like the break disks on a car- when in use no rust, but after several hours a little rust starts to appear, especially when it´s raining or the air is very humid.

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Sorry to disagree Tom, but I still feel there's far to much contrast on the tracks here and the inner surfaces are too 'clean'. Either that or 99.9% of the builds on this site need a makeover!

I think Boris your best bet might be a dark wash to weather / darken the entire tracks and make the contrast less striking, then dry-brush the "teeth" of the tracks steel to simulate wear & polishing from the road wheels.

Just my opinion. Otherwise, like I said - great job!

- Steve