So..

This was the first one i did- it was extremely rushed and i didn't really like how it turned out-
So after a bit,
I did the challenge again!

No bucket was used, i colored every single bit lol-
And here is what it looks like, animated!

[There should be a GIF or video here. Update the app now to see it.]

So yea! This version took me literally 50 layers, and 7 hours to do-
But it turned out so good- :D