My camera got the white-balance totally off in the last picture - it was actually dark green, rather than ligh bluish. Anyway. I've completed it now.
I was quite nervous about doing the matte varnish. All other planes - especially the Junkers Ju-87D I built recently - got horrible white milky streaks and blobs. So I'll give you some before-and-after images:
First before matte varnishing; Everything is painted with gloss varnish and decals in place. Looks quite ok:
2016_05_03 14_11_49 EOS 760D 04312-resized.JPG
Now, lets look at the final result, with matte varnish in place. As can be seen, especially on top of the fuselage behind the canopy, there are white blobs where I lifted the brush, and white streaks at the panel lines, rivets etc and some brushmarks are clearly visible.
2016_05_03 16_09_46 EOS 760D 04328-resized-curved.JPG
This time I was really careful about painting with quite diluted varnish, and painting really thin layers, immediately ensuring no build-up of excessive varnish where I put down or released the brush etc, but still I got the whitish result.
I think I'll change varnish, because I really think there's something wrong with my bottle. Unfortunately, my model-shop doesn't have a lot of turnaround of paints, so I'll buy from another store.
Apart from that - lessons learned:
- Paint alongside the wings, not in the direction of flight - reduces buildup of excessive paint at the leading and trailing edges. Generally, really avoid painting perpendicular to any sharp edge.
- Grind with 2000 grit before applying last paint layer before the gloss varnish - the surface will get super-smooth!
As a side-effect, although rivets and other elevated details may loose some paint, but the final layer will make those details appear a little lighter.
- Grinding should probably be done perpendicular to the direction of paint for best result - got to try that on the next model.
- I've gotten a good understanding on how to paint thin layers to an acceptable result.

- Do NOT use household masking tape. Use proper model masking tape such as Tamiya's. Otherwise, there will just be a bloody mess of bleeding blobs.
- Make sure the paint is properly thinned when painting the pilot.
In conclusion: Purpose achieved - I got better at painting. Model result: The paintjob turned out to be the best camouflaged aircraft I've done. I didn't bother puttying nor being careful about removing excess flesh, so it looks quite horrendous. As always, I've brush-painted with Humbrol acrylics, and photographed with a Canon EOS 760D+50mm 1/4f prime lens.