Ok. Just watched part 2 but not seen part 1.
Looks like you had great fun making that.
My only real comment is a general point. Get youself a decent tripod for doing this kind of thing.
In some of the shots there is noticable camera wobble from the dude holding it and sometimes the camera even falls off the subject a shade. i.e. can see above the subject but feet are cut off.
Were the children giggling part of the movie? Seemed disjointed from the movie to me. Maybe you should have lost the volume for that bit.