Wow, Giovanni, outstanding capture! This one spells action! I might consider brightening up the eye a bit, trimming a little off the top, and adding a a very little canvas to the viewer's left but I love it as it is.
Killer behavior/action captured, and you did a good job controlling the noise although I agree with a tad more NR on the BG as Dan suggests. I agree this is a bit tight and wonder whether you have more canvas.