Help with Lang's tarantuela

[steinarf]

Hi,

I have tried to make Lang's tarantula from Origami Insects Vol 2, but stop on number step 19, unsink for the 3 times. The first unsink I have I'm sure I have right, but the second, seem do make all the paper I have locked inside get used for the 2 unsinks, so I have no more paper left for the 3rd unsink. Do any one have a clue, or maybe some pictures on how to do it?