Need advice for my first growlin' sample

guys..thanks for ur advice :)
yeh i need more practice...
i really want more powerful growlin' like a monster..
is there any vocal muscle training for growlin' ?
 
I'm trying to do the same thing. And believe me, being a girl is hard enough.
I've noticed a few things about being a better growler. It's easier to do it with your chin angeled towards your chest. I also do an exercise that involves going up and down the scales singing OO (as in who, but without the wh). The book I'm reading says it helps stretch the vocal cords.
 
I wouldn't be able to tell you. I'm actually rehearsing in my closet with my Sure SM58 and it's pretty dark in there. I'm telling you, I have the most amazing set-up...hahahaha