I had various first models along my life.
My first first, was a chopper, in that time his name was just helicopter, a Revell Sikosrky S-55, was around 1961, when I was 11, after I built about 15 models, I stopped for more or less 20 years. I don't need to say that I don't have them anymore, victims of the time, brother, address changes.
My second first was a ship, HMS Victory, what restart, huh? I took about 5 years to built it, I was always very busy.
Now, I'm retired, my third first was a british tank Challenger, done last year. After some models I decided to build only armor. Today I'm building a Tamiya Sherman 105mm, with help from my friend Ilhan Aydiner.
I hope not to have first anymore, and that the last one is very far away in the time. Hehehe
Take a Look: http://www.meuhobbyhpg.com/adm/mhgaleria.htm