I dont think a pink undertone is a bad thing, paint in the desert fades into totally odd colours. Here in South Africa green fades into a strange brown tone.
What you can try maybe is a filter to alter the tone a little but still leave the basic colour. I did this with very thined water colour , look at the slight difference between the front (filtered) panel of the LH side skirt and the rest of it/
Academy 1/35 Magach 7 by Theunis van Vuuren, on Flickr
Academy 1/35 Magach 7 by Theunis van Vuuren, on Flickr
To me it looks like a repainted or replaces part that has weathered at a different rate.
Academy 1/35 Magach 7 by Theunis van Vuuren, on Flickr
Academy 1/35 Magach 7 by Theunis van Vuuren, on Flickr
Academy 1/35 Magach 7 by Theunis van Vuuren, on Flickr
Academy 1/35 Magach 7 by Theunis van Vuuren, on Flickr
Academy 1/35 Magach 7 by Theunis van Vuuren, on Flickr
Academy 1/35 Magach 7 by Theunis van Vuuren, on Flickr
Academy 1/35 Magach 7 by Theunis van Vuuren, on Flickr
Im caling this one dune, was a fun build, came out better than I expected.
Theuns