One of the most common mistakes made by junior animators is to have even timing and spacing on their character performances.
Even timing and spacing produces soft, floaty animation, lacks definition and feels mushy. This is particularly the case when the animation is based on live action reference. Reference, if followed too closely, can end up feeling floaty and weightless.
The solution to this problem is to tighten up your key poses, and spend more time in the key poses, rather than transitioning slowly from one pose to another. Animators call this approach "snappy timing", or "tightening up the poses". Your goal is to make the motion feel dynamic and crisp.
