Water bomb origami pattern

Hello steemians! I want to show you this rigid origami work that as known “water bomb pattern”. No glue, just folding!
I drew the pattern on a little thick paper, the blue lines on the front of the paper and the red lines on the back. Then I drew slightly with a knife without cutting completely on the lines to make it easy to fold.

It is a little hard to do but be patient! The result is amazing.

Here is the pattern. Enjoy!