This is a new style

It’s just an experiment, tell me what you think! I think this theme is pretty stylish, although, I know, looks a lot like A list apart, which is awesome as well. So, what do you think: Is it worth putting in some effort to stylewalkerize this theme?
Make the picture embedding look better, do something about the header image, maybe use the third column for more fotos or widgets?..
I really need something new, I like my old style a lot, but things need to change.