Hi! I use an all natural permanent color that I buy on Vitacost.com. It's called Herbatint. I also color my hair a burgandy color like the pics you show above. I have been using 5M and I love it. If you wanted to try it, I would probably go with the 4M since your hair is a lil darker brown than mine. Also, it doesn't have any ammonia in it. I love it & haven't found anything else yet that's ammonia-free that colors as well.
Went full CG May '10.
Silicones sucked me in & I went Mod-CG in Dec '12.
Still paying for that one & trying to get my curls back!