That is some quick response!
I had a quick go at a simple animation. When I started to have it go up and down it still looked okay. Then I added the hands and it got worse, I had a go at bouncing the hair which was really really bad (I removed it), and then I did the mouth which is also crap...

Luckily I can say I have learned from it: It is not possible to do subtile animation on icons this small.. So I better make the next idle animation very expressive!
Oh, and speaking of the zoom: On Chrome this gives a very blurry effect... But if all other people view with FF and like to see it in 1x too, I will keep on posting 1x

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Edit:
I think I improved it here, although it is still not as good as I want. Perhaps it should be less active, less general (like no breathing, shaking heads/hands but something more special), but that will be harder to animate, and in my mind I do not see ideas yet which can loop all the time..

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And another edit

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I am not sure about the entrance, but for the rest I like the tent. What else can it have to make it more interesting, or any other kind of entrance? Does the entrance really need to be big enough to fit the clown?
And last, but perhaps most important: How am I going to manage and optimize my palette if I am going to have lots of different images using the same palette? Perhaps I should paste them all in one big image every now and then and see what I can improve (and then manually edit all animations and such -_-)

EDIT


Which one do you like?