Well, I wouldn't say talent, it's more of an ability to draw. Everyone can draw, some have a better sense of observation, some a better sense of execution, etc, that helps them learn and draw faster, but yes, you're exactly right. Everyone can draw, but not everyone has the will and motivation to do so, and thus improve. There's also the endless challenging yourself, drawing things out of your comfort zone, that makes things a tad less simple. Eep, sorry I'm rambling! :'D