The truth about the button bowl

So it has been a week, time to catch up on the "Button bowl" craft ....
I started full of hopes
I worked all weekend and this was the final result

After much thought I decided to put my beautiful bowl in the bathroom ....
There it has been residing since last Wednesday ... and this is what it looks like today

I still think it looks quite good, but the reality is that day by day the bowl is looking more and more like a plate....
It seems the buttons are too heavy for the glue...
Not sure whether I need more buttons, different buttons; or maybe more glue or a different glue... suggestions are welcome.
I am still planning to master the bowl and use it for Xmas presents.