Thanks for the compliment. Was fun to do one, I'd been wanting to try my hand at it for a while.
I used Tamiya Acrylic paints I used to use for the car models I'd paint. Started with a black base coat to cover all the green and then just another coat over the top of the relevant colours and then touched it up where necessary.
I tried to make it as close to the g1 figure i could with my limited skill so pretty happy with the way he turned out. As a display piece in my collection of legends/legion bots he looks great.
My next/current attempt is to use the same mold and do a version of the g1 Trypticon toy.
Trypticon Progress