Technically not my first, but the less said about my 12-year-old self's attempt at painting BattleTech miniatures the better.
I used a flat white primer and FFG's paint set, durasteel for the guns and some of the backpack details. I had a decent lit magnifier for soldering and that proved useful and used the wash on the non-white parts.
Remember, you don't have to be as good as Sorastro, you just have to be better than me.