Is my Brazilian accent hard to understand when I read?

Your sound very clear. Your intonations and speed is very natural, and you have an almost native sounding accent. Honestly, I’m very very surprised you say people struggle to understand.

Your pronunciation and accent are really good. The only time I would have a hard time understanding you is when you mispronounce a word. Reading is quite a different skill than just speaking. There is drama in the passage and you're expected to express that too. That little bit that you speak before you read the passage sounded quite natural to me.

Your accent is understandable but you could speak clearer.