I painted Boba Fett in the colours found on the movie model and not the standard FFG paint scheme. I re-painted my X-Wing Scale Slave 1 the same way. Here are some reference pictures of the movie model if you’re thinking of doing the same thing.
After cleaning the model I primed in black using P3 Black primer.
Always use many thin coats, at least five, as opposed to a few thick ones. It takes longer but leaves the tiny model details visible.
Slave 1 was then given base coats painted with Neutral Grey, Intermediate Green, and Scarlett Red.
The grey was washed in Black Shade, and given a highlight in fortress grey.
The grey was given a further highlight with a 1:1 mix of Fortress Grey + Silver Grey.
The dark green base of Intermediate Green was highlighted with Goblin Green.
The red was given a light wash of Blue Ink in the crevasses and on some of the panels. A light coat of Scarlett Red was painted over the edges with a light highlight of Blood Red was given last.
The light green on the sides was made by dabbing some Scorpion Green on the hull with a small brush you don’t care about much. The yellow on the wings was given a base coat of Bronze Flesh, Highlighted with Moon Yellow, and lastly outlined with Brown Ink.
I tried to create a subtle weathering effect by lightly applying a mix of Fortress Grey and Silver Grey to the red and green areas.
The back was done by giving a drybrush of Chainmail. Areas were touched up with Copper. The engines were an Ice blue + White mix (1:1) on the two inner dots with Ice Blue painted on the outside of the dot. A small red stripe was painted with blood red, but it looked like a smiling face, so I cut the red line in the middle with Chainmail paint. Sorry for the blurry pictures.
The last touch was to give the cockpit a nice coat of black paint and seal it with a gloss varnish
I leave you with this great sketch from Robot Chicken about Slave 1.