Upgrade plastic container to Vase - Using PoP

I tried to upgrade my old plastic container into a vase using Plaster of Paris. I used water, glue and plaster of Paris in ratio of 2:2:3 to make a smooth blend which is not too thick not too thin.

Then I applied the paste all over the bottle and let it dry for 48 hours.
Once dry paint over the dried paste.
I used Acrylic colours to draw scenery over it.