>>7551351>>7551549Nice tank. Is it the airfix kit? Was my first kit.
My advice would have been to put on a varnish and try using oil paints for smeary effects for fading and mud/grime/oil.
The way it looks now isn't bad, it just looks like it drove through very dusty red clay, which I'm assuming wasn't your intent for a European theatre tank.
There's two ways to fix it depending on what you want. If you want to double down and make it a tank that's driven through very red dust, you ought to put the turret back on and lightly flick dust up above the fenders and tracks in order to convey how light the material that it drove through was.
An interesting thing to know is that when weathering often just "flicking" the pigments or paint onto the object from a distance can create a lighter and more random effect than is possible while applying with direct contact. If you feel you have enough dust bult up on the lower part of the tank you can block it off with a strip of cardboard like from a cereal box.
The other approach would be to darken the colours on the tracks. If you have more pigments, get a darker brown, mix it with a medium to dark brown wash, and apply it over the red-brown pigments. Another benefit of this is that more colours in the pigments will create a more 3D effect. And if you use a wash you can do the "flick" trick to make it look like splashes came up onto the body of the tank, rather than the dust accumulation look it has now. This is likely to be trickier than just doubling down, however.
All in all it's not a bad job even at the minute. Don't stress it, it's not "fucked up".