Brazilian? I would have though this from a native English speaker.

The second of the two videos from the previous blog post was from a writer in Brazil by the name of Carvalho, and it was the first time I'd reviewed an essay from that country.  There was a second Brazilian, also named Carvalho, in the queue of essay waiting marking, so I felt obliged to review hers too.

THe lack of grammar and vocabulary errors are similar to what one might see from an NES. However, that doesn't assure a good score on  the IELTS. See this video to hear why.

Anyways, the only problem with this essay is plain bad ideas.