Planning New Shibori Quilt

This is what I sewed together late last night, thinking it was pretty good. 

 

This morning it didn't look as exciting as it did last night, so I did this:

 

Then I pinned up this variation:

Followed by this last variation:

 

So if you are looking at this, please give me some feedback as to what you think is most interesting, 1, 2, 3 or 4.  I'm leaning towards 3 or 4.