The "RA" overlap bugs me, but otherwise this is really cool. I'm not sure how I feel about the 'S' - it might need to be looked at, but it fits the general vibe of the logo. Also, the bottom of the 'U' could be a little bit thicker, but I'd have to see it that way.
As for kerning, "UN" in "UNITED" seems closer than the rest of "UNITED", so I'd tighten up "NITED" a bit. Also in "BRAZILIAN", "IL" could be tightened, as well as "JIU". As I've said before, I'm no kerning expert, so someone else could probably help you more.
Good job, and I'm looking forward to seeing this progress.
- Lex
