I've been using photoshop 7.0 for years, and I still don't know how to create an animated gif. This one looks lovely.

Not sure what type of layer your cell style image is. Is it a line vector? I'm guessing this is a newer version of photoshop than I am used to. I'm using using crop to make the image smaller or edit-menu > resize to shrink and grow the layer, but this can degrade the image clarity sometimes.