a lot of these figures are really static and the action just isnt there. your style should be really conducive to implying movement, so use it instead of the blur tool (which looks awful). things like the guy on the right's straight left leg, the right angles in the left figure, and the straight horizon and solid rocks in the foreground really make this picture stand still when it should be in a flurry of action. almost the whole image is made up of verticals or horizontals.
study up on gesture and movement etc.
also there are some anatomical issues like the left figures really long left arm, and the center guy's head is too big.