Ernesto, I too noticed what Gino mentions on your trousers and sleeves. Assuming that you intended to show some dirt on the lower portion of the tunic, you instead ended up with what looks like 2 different piece of cloth. Shouldn't be too hard to fix. Add some more highlights on the sleeves, darken what is on the lower tunic, then add earth tones along the lower portion of the tunic. I'd stay away from sand colored earth tones as it looks like you used them in your red highlights, to an extent. That or lighten the tones on the shoulders and sleeves. In either case, it's still a fine looking figure so far. One which I'm looking forward to seeing completed.
Hope this helps,
Jim Patrick