I think I like the second the most because the cinch adds just a little more to the middle :) The third with the butterfly on the hand brings too much attention to that area.
I like the third one, the extra dot of yellow on your finger is nice :)
I say go with the first - the second two make the legs and head areas appear more empty, but the first makes it just like a nice simple look. :)
I like plain things, so I would go with the first, without the bag. :]
I'd say the second, or maybe the third if you remove the butterfly on the hand.