Thanks again for your help Edgar

I made the engine cowling panels fasteners by using a piece of messing tube with a diameter of 1 mm :
It took me a couple of hours to do this. Some have been done 2 or 3 times, a couple need to be filled and made again. But once it's painted, I think they will look good.
And a made the radiator flaps control lever from 2 pieces of stretched sprue :
Once installed in the cockpit, I hope it will look like this :
Greetings, Pascal