Are those white pixels on the 2nd and 3 frames of the anim supposed to be there? (There's 3 of them, one at the bottom of the feather frames 2 and 3, and two at the top on frame 3). If so, I think you need a slightly darker colour, they stand out too much.
nice sprite.. oddli animated, (it would look nicer as a stand still) but very, VERY cute.