Oops the post doesnt belong here, lets alter it
just a something Ive done for myself
http://img368.imageshack.us/my.php?image=161xe7.jpg
you forgot to put your initials in the bottom right corner!
If the person that's slicing is the same as the one holding earth, the thumb is on the wrong side. Unless you cut like this: (https://clockcrew.net/talk/proxy.php?request=http%3A%2F%2Fimg242.imageshack.us%2Fimg242%2F9219%2F88865911up7.jpg&hash=b6461dae105901ed1739bad0374fa96c5c092689)
Regardless it's too small. In fact all the fingers are a bit strange. Especially the one popping up from behind the earth.
Other than that it's neat. Try sketching a bunch of hands.
Hands are a nuisance to draw. As Grey said, try drawing hands.