I thought I just need to make a big hole at GM's body, but I noticed that his shoulder length is too wide.
Once I noticed, I want to fix it. So,, I start to make it narrower.
First, I cut the sides of the body.
Then, I plug the part that was cut with styrofoam
shaped using putty...
Now, it looks like this.
Hmm,,,, Is this better than before???
now, I am not sure...it looks kid, I think.
Any way, I will drill a hole next for sure.