Don't you ever wish that you could start something new, and be instantly great at it? I look at the difference between my very first quilt and my very last quilt - WOW!. what an improvement! Same can be said about my first pair of socks and the last!
But, with sewing and knitting, you can follow a pattern and even use the same fabric or yarn, and end up with something that looks a lot like the pattern cover. Not so much with painting, I'm afraid! You give the same photograph to 10 different artists, and you will get 10 very different paintings. Everyone has a different "style". So, that should be good for us, right? Maybe so, but it's still a little frightening to put your stuff out there, knowing that a lot of folks who look at it will think that their dog (or their 1st grader, or the neighbor's parakeet) could have done better!
I've been doing lot of reading of artists' blogs, books and magazines - trying to come up with my "style". All I have found is that while I know what it is that I like to look at, I have no earthly idea how to do it! So, for now, all I can do is practice - learning about color, shapes and shadows, perspective and composition -- knowing that as I keep putting paint on canvas, my own personal "style" will emerge and not look like anyone else's. Now that's really exhilarating!