I suspect you are not quite finished as the rust patches at the panel intersections seem quite symmetrical at the moment. Other than that the effect looks quite good.
Weathering is all done. Had to stop myself before I went too far, and I can really go too far if I'm not careful. Its much dirtier and darker in person. So with exception of a crew, this is done and dull-coated. Just have to put it on its new stand and paint the R2 and pilot. But for now after almost 6 months I'm wrapping it up.