Thank you Colin for the support!
It may sound a little strange, but for a long a time I starred and starred and the yellow just didn't fit... and, like you, I didn't know how to work on it...
I found the Pegaso 75mm François L'ollonais figure painted by PF member Ernest, and I thought, maybe I'm gonna do something like this, since my breeches were in similiar tones.
So I painted the shirt in a darker blue and I'm going to work something similar to him, just to have an idea I live you a link for you to see:
http://erminiatures.foroactivo.com/t247p30-francois-l-olonnais
I hope he don't get mad if I "copy" something that he did...I just wasn't seeing any other way... anything I looked as a possibility didn't feel very right... and, like you, I don't know very well this period...
Soon I'll post some progress
Regards
Pedro