Another baby quilt

My coworker's husband is a firefighter and when they found they were having a little boy, I was inspired to make her this quilt.

 While it's hard to see in the picture above, the middle panel has dogs and fire hydrants.  The outer boarder has pirate ships.  I loved these colors together and the little boy theme. 

The walking foot quilting on this one was tedious.  One thing I would try in the future is using a different bobbin thread from the main thread to see if it will hide the stitches on the back better. I'd love any advice.