Diego,
What bio are you talking about? I couldn't find one.
Yes, it needs improvement. I learned nothing about you from your profile. Where were you educated? What work experiences have you had? You gloss over everything -- "I've worked with top channels in my country ..." I believe you, but that's all you have to say about that? You are a top audio engineer and you have so little to say it's a bit embarassing.
OK ... your profile is OK. It will not hurt you. But it is a very quick effort ... again; it's not bad, but it's very rushed.
My suggestion ... tell us more about who you are. Do this through your skill set, yes, but you sound like a machine. Can you sound a bit more like a person?
I liked your portfolio samples. You clearly know what you are doing.
Then ... the last sentence ... "Sound moves emotions, and I know how to make every note and effect achieve that."
That's just awful. Sound moves emotions ... are you writing a greeting card? You know how to make "every note" convey emotions ... can I purchase the moon from you, as well?
Sorry ... you can do much better than that for an ending.
Good luck.
