I saw this in that gallery thing where it is still pending aproval and I already really like it :P I like how the word 'SPAM' rolls of the screen 4*
The big problem here is how the mouth moves. Look at yourself in the mirror and talk; your lower jaw has to move in order to move your mouth, yet the jaw remains static and the mouth moves. Move the lower jaw downwards when the mouth is open and the animation will look far more realistic.
136 colors seems like too much. Did you use a brush or airbrush?
Good, but you should add more of a kick to the word SPAM after all it is coming from a megaphone.
thank you! :)