Thank you my friends for your great feedback!
I hope to being able to finish this build after the actual restart. Last year I was bit surprised and somehow overstrained by the huge amount of small parts. So at that time
it looked to me "a bit over engineered", and after the wood painting with oils, which needs some time to dry I lost the drive and started something different (Pfalz Triplane I think).
In meantime I prefer to do wood painting with acryls, so I can continue quickly.
Frank, who's paint is that brass from, it really looks the part.
The radiator was the last action last year, this was done with Alclad "Pale gold", with a some drops "polished brass". Polished brass alone cannot be touched, it needs sealing.
Today I often used MRP-150 Brass, but this alone is sometimes a bit yellow, so I spray a thin layer of Alclad Pale gold on top of that.
As Monty has written, that radiator looks real. Why will the slats not work?
Stephen, this damn small slats are made from full resin (no look through) and are not single PE blades. I will forward your complain to Eduard, may be they will provide me a new working version. But in 1/48 the are feeling overburdened with such request, I guess

Cheers,
Frank