Okay, another animation lesson.  This one proved to be tax my brain a lot more than I anticipated.  I had to deal with Timing, Anticipation, Action, and Reaction, arcs, Slo-in and Slo-out, and overlapping action.  The idea behind it is the seaweed I animated earlier is now sliding left to right across the screen.  The movement of the seaweed has to travel up the length of the seaweed at differing lengths of time.  So the bottom moves first, and as you go up the more things lag behind in inheriting that movement.

I'm pretty happy with it except for the change in direction on screen left.  It feels a bit stiff, like the whole thing is rotating, instead of the movement traveling up the spine of the seaweed like it should. 

I kept this one loose and rough.