Yo guy, explosions move too much to feel smooth, you gotta make them combusting explosion clouds move smaller distances pixelwise frame-to-frame or it'll seem jerky. Note how in my explosion the framecount isn't only off the charts, but stuff doesn't move a lot from one frame to next, cause this leaves much clearer after-images to the eyes that now interpret the motion as jerky since it looks (cause it is) split up into still frames.
Heh.
So make fast motions very fast and slow motions very subtle and the eyes will see smoothness O: fantabulastic
oh also btw if the explosion looks like my original colour-and-motion-wise I'll only be flattered so copy as much as you like, you dude you