Yay, thats really nice =D a lil bit too fast, but after watching it for the 20th time it seems really nice, I like it, I like the tentacles when they appear, the blur's nice and the only thing that I'd change or adjust is that one of them (tentacle) should move with some delay, some overlap, so it seems more organic, something that would give it the extra feeling, its like when you through spaghetti at someone, some of them will be faster some of them slower
http://www.youtube.com/watch?v=Ezm6bliJgPc
(lol yeah, the only thing that came in my mind was to type "spagetthi slow motion" and I got this) but you can see the overlapping action, some of them are at their extreme positions and some of them are just starting to move (0:35) some kind of falling behind of one tentacle.
But thats all Ive got, apart from these two things (speed, overlap) its damn awesome.Its nice to see you coming back, really, we need more skilled animators here ;)
oh and btw, those small guys are really neat, that was actually pretty good idea to put them there =)