Where do I start in ConceptArt and how do I get better?

I'm lost I don't know where to start, I want to learn concept art and I want to start the traditional way cause it's what I can manage at the moment... 

I saw this guy's concepts https://cgcookie.com/u/timvonrueden and I'm like WOW I want to make something like these, but the down side is, yeah I can't draw very well like everything there is to know about drawing I seem like I don't know