I say thank you for your kindly observations and for the tips.
Really soon i´ll bring very nice updates as the air compressor system i am mounting is going just fine.
I did the lung screw cover system and tomorrow i´ll put the botton valve and finish the compressor for the airbrush works.
The cover with regulator screw mounting:
Just a better shot of top alien (still miss 1 led)
Now i am going to bed, see you tomorrow !
Thanks,
Pedro Torres.