That first flame looks a lot like the flame in this post on page 15 of burners 101:  If you look at the very next post, Mikey talks about that flame and how it might be improved.  A few posts later, an updated shot of the same burner with a better flame.     Here is another example on page 19:  Three posts later, Mikey going into a bit of detail on reading a flame and correcting problems.  Further down the page, another updated flame shot with a better flame.  Mikey's post