The first part was remove the Head and arms of the toy cause they weren't match to the aesthetics that i wish for the project:
Fully Assemble toyThe head removed
After that i gave it a primer painting, the first ideia was give it a black painting after the primer, but i actually like the primer color and texture, so i continue without the black paint layer, although it is not a good pratice.
The robot without head and arms after the primer painting