here he is 
It’s a beginning, but my humble opinion is:
Første: Your “dude” looks like that “dude” in Terminator 2, which is made by something completely inhuman. So, you need to put some textures on the body, or just some basic skin color. Well, I don’t know, I’ve never watched Star Wars closely enough to remeber of an humanoid with this color, but that’s my opinion.
Second issue: There’s a tremendous absence of light, which should be impossible in something with fire. Put more lights! A light with a yellowed-reddish color on his back, all the ambient is too dark.
That’s it! Good luck!
The Light Sabers need work. This is my first attempt I made of a Light Saber based upon a Tutorial I found. Even it needs a little work.
use halos for the light saber
You could do a really good job if you use Nodes as well.
Here is all you need to know on how to make a lightsaber blade. By our very own Jonathan Williamson: http://www.blendercookie.com/2010/03/09/rendering-a-light-saber/