Stained- glass lap quilt

I made this colourwash lap quilt
for a dear friend who is having major surgery.
I wanted to give her something
beautiful to look at whilst she was recovering.
This is the story of how the quilt developed . 

I started by selecting 12 different blue/green fabrics including some batiqs
Then I  cut 4 strips each measuring 2" wide .
I wanted the colours to harmonise. 

The strips are sewn together and then cut into 2" strips again. 

The first piece is beginning to take shape.
Time to make a second panel. 

Both panels are stitched
but I'm wondering how to sew them together without losing some of the pattern.