2D Weightlifting Flour Sack - Missing Details

After finishing my weightlifting flour sack animation, I realised I forgot to add the impact the ball makes when it hits the ground. By adding this small detail, the ball appears heavy throughout the animation. This consistency is key in making the animation not only look good, but for it to be believable.

After adding this small detail, I did still notice my lines wobble a lot at the start of the animation, so I would like to redo them when I get time.