great job man! your 3d sense is really strong and your storytelling is great! the animation could be timed/composed better at parts but for the most part it's really well done!
some things I noticed were when the spider first waved the motion of the wave was evenly timed where as it should probably be darting back and forth with eases on the ends of the arc. also, when the vase was tilting both in the horizontal and the circular motions it wasn't fully believable. when it rocked horizontally it seemed to bend instead of tilt back and forth and while the circular motion was drawn well it was titled a little too far outwards.
hope that helps!