Man, great job on the hands and feet. I really need to work on that myself. Also, smooth animation, good job.
I really like the roar 0.0
It makes it alot more intimidating than just bonucing around!
good work
why not make him swing his head back and then forward so that it looks like he was taking a deep breath!
i think its supposed that the head is moving up and down like that i luv it 
nice animation!
very nice animation, make some colour changes to the right hand, its blending with bc, and .. is half of his head splitting and moving up and down /or its a artefact ?/.
Great movimentation, are you making a game with this?!??!
. It's another example of your great skills. 5/5
WOW This is my kind of spriting! 
Are you using these pictures for your cards only? Because that would be a waste... Well anyway, I am a Game-programmer, so let me know if you'd ever want to join forces to create the perfect game 
- Vertigo -
You can try some of my games (not all of them yet) on my site if you'd like...
I agree with big brother; surely it is an awesome animation, but it's got its flaws, specially analysing it just as a sprite. His right arm looks really flat, his chest has gota wrong lightsource and need more shadow, since he's leaned down and light won't ever reach his chest.
Hahah this is priceless! Looks just like he's listening to some hardcore song or something and then he goes "YEAAAAAH" Great animation!
The piece is very flat; it's hard to distinguish his right hand, as it uses the same colors as the rest of his body and fades into it. I would add some darker values into the mix, which would make him pop out as a sprite more. The animation is generally smooth, but his legs jump oddly before his yell. Also, the panting loop is a little hard to read. It seems like he's shaking out his legs before stretching or something.
Very nice