Practice vs. Talent?

I have been playing guitar for over a year, and unfortunately I don't think it comes naturally to me. I don't consider it to be a talent, because I have to work hard to become very good. I recently learned this song, a href="http://www.youtube.com/watch?v=BaRcQWVeUQc" rel="nofollow"http://www.youtube.com/watch?v=BaRcQWVeU…/a (go to 0:58), but he guided me through it. I know basic chords, barre chords, tablature, finger picking songs, etc. I was just wondering if you guys would consider this talent or just a skill I acquired over time...and what the difference is between the two? My brother is amazing at guitar and he learned all of this in about a month, and can play basically any song now. He started about 5 years ago, and I consider him to be very talented.