Lance, igi70, Filip, Edo, Willy, thank you very much!
I painted the wing (wooden brown, then penciled ribs, thin coats of linnen color, I use Mr. Color), then added the decal and postshaded it. I didn't use Future under the decals, which I would nevertheless recommend. Last step is a coat of dull clear (I used Alclad II clear here that is very dull but doesn't get whiteish). And yes, I used one single piece of decal for the wings. The Aviattic decals are quite robust and don't at all tend to brittle or disintegrate in water as decals of some other manufacturers do. They are quite flexible. But you need a good decal setting solution, I used Tamiya's strong decal setter which is stronger then my normally used Mr Softener. If I had had the Daco stuff, I think I had even gone with this.
But as said before, I would recommend a glossy finish before applying the Aviattic decals as they sometimes tend to silvering.
Borsos