This was a very informative video. I think next time you should add some images and show people a few places that you'd recommend when traveling to Brazil. Keep up the good work and you'll get to understand what people are looking for in a travel and informational video. You have a great start to creating a YouTube channel. If you want to be an authority on Brazil then I would suggest being a bit more professional. This will sell people into subscribing to your channel, make you as an authority on the subject, and give you a lot of creditability. Visual aids are the best way to get people to follow you and also subscribe to your channel. I liked how you talked about Rio, but I think you could add to this with some pictures of the outlining streets, the city, and some of the problems. If you have a newspaper that gives some stories about how a tourist was killed maybe you can add a few of them. This is excellent advice and will show people the dangers of the city. I would also add safer cities and pictures of where you'd recommend a person to visit when in your country.