I like the background alot, and the blending on the text is good, I like how you made it all in lower case. Im pretty sure thats the picture were he puts the ball behind his back would have been nice if you could show that in the sig.
Wow that is amazing my friend, and yes that is the picture when he participated in the Slam Dunk competetion, where he did around the back dunk. I love the background, it's blends very well with the picture. The font is great as well. Good job overall.