On top of what Leen has said, the second shot you posted of your scheme is showing the signs of mip mapping..

I absolutely agree with that Morgan.The problem itself, however , lies in the lack of shine.Mipmapping has a negative effect on shine but this has to do with something else.The intakes do not have any shine whatsoever this must have to do with the alpha`sI am curious to know the answer.RegardsLeen

so i should not use mipmaping? or should I?

Its designed to help performance, so its useful for AI aircraft. But paint schemes flown by just the user tend to have them removed to make them look better. Remove them and see the difference :)Alpha channels do, as Leen said, also tend to lighten up the scheme.. even if its a very weak reflection.