you're very action oriented, I see you going very far with this series. your sounds are a bit off, but this will come with practice :D! dude, I really like your moves, keep it up. You will go far with this :)
Ok here goes nothing
Look you've got a lot of potential man but here is my criticism!
Animation was alright tho a couple extra Frames would made your animation a lot smoother. Also good work with the camera shots as it kept it interesting but try add some Blur effects for a depth of field, it makes it easier on the viewers eyes.
Definitively work on your Sound and Music i can only say it was terrible but please don't think am trying to be mean its just a honest perspective.
Stick to just English, am Spanish and yet i rather speak in English, my best friend who is Portuguese also feels the same way and most of the world knows English even as a secondary language specially those educated enough to be part of this community. So i don't think the trade off for more Portuguese fans its worth the subtitle clusters on your animation.
Also the Font and Font Color isn't working its very hard to read took me a bit to figure out what dialogue was which.
Keep it up man you got talent.