How to make an origami butterfly based on closed sink-fold (page 2)

 

01. The initial base that we are using here is "balloon base" .   If you don't know what balloon base is, study the above link to preapare this base.   If you are ready with balloon base, then prepare to rotate it by 180 degrees.

02. Rotate the base by 180 degrees.   Prepare to apply a horizontal valley-fold at 1/3 height from the bottom.

 

 

 

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