G1, eatcrow2, OkaySoWhat thank you all. Sorry for the late response but I am diverted for health problems with my parents.
This built is the bigger and the more complex I ever did, but the result is worth the effort. About the clean looking, this was my first target and for to reach a better result, you don't need a particular skill but practice, practice, practice, ... And this model gave me a lot of practice
Best regards and thanks again, Nando