Adorable

CUTE

cute!

Certainly a cute little gif. :P

One thing I'd say about this piece, is that if it played once in an animation there'd be absolutely nothing wrong with it.

As a continuously looping gif, her eyes close into her happy squint and then pop back to being fully open when the gif starts back up again. To make the loop smoother, adding some from frames where her eyes open up slowly after staying shut for a while, and then holding them open for a bit before restarting the gif.

That'd fix things I'd think, but even as is this is a charming little thing. :)
Keep it up!

Lovely colors!