Post-shading and blending everything

Airbrushing sessions are going rather well these days and seem to be following each other in rapid succession. Maybe it's the weather, maybe I'm counting the days until we go on vacation (4 more days). Best not to dwell on it, in case we jinx it.

I wanted to do some post-shading, because last time, the green layer went on a little too heavy. With a slightly lightened version of the green, last time's smaller nozzle and some extra thinner to keep it all flowing, I slowly attacked the centers of all (well, most) panels. I soon realized it wasn't light enough, so I added some white. Still not enough, added some more, but the paint started flowing more slowly.
Long story short, by the time the thicker paint had left the nozzle and the easy-flowing mix was spraying again, it was TOO LIGHT and I had to add more green. Grmbl-mbl ... I messed up a few of the panels, but all in all the result is adequate and it was a good lesson in patience for next time.

Next up : blending it all together. The green is too sharp against the grey, so I decided to give another try at misting it all over with a very fine coat of grey. Remembering a tip one of you guys gave in a comment to an earlier (failed) attempt, I used 10 parts thinner to 1 part paint. It sprayed nicely but the result was negligible. 5 parts thinner to 1 part paint and we were slowly building opacity.

Everybody always has the same to say about this technique : "If you think it needs one more pass, STOP!" I can agree wholeheartedly, having just taken it 1 or 2 passes too far. I have no idea how further varnishing and (subtle) weathering will influence the colours.

Oh, and I broke off one of the forward antennae. Easy fix, no biggie.
Below is the before and after. Next step : masking for the red and black area's.