That's a really cool idea but there seems to be something wrong with the sequence. How many layers are you using and did you select "replace" for the frame disposal?

I think this would be better if you could get rid of the big white flash and make the size changes in smaller increments. Might make it more realistic looking. Just a thought. Try those tweaks and see if you like it any better.

what file format can't see it on my phone

Nvm good old default browser like the idea but the white flash is odd and I think you need more layers to smooth it out

Most likely you need to delete your background layer which seems to be a all white layer?
Then it should flow much better.
Also you can slow down the animation inside the layers by making this (100ms) a larger number say 400-500 ms.

Pretty cool animation though.

thank u but idk how to edit it after i have already closed it

Just open the GIF file as it saves layers.

as said above in this case as it is an animation you can just reopen the GIF but for future reference always save an xcf file to avoid having to restart your work

If you download this GIF you can look at the layers and see what i mean.