Using Jenny Doan's free video tutorial here at SWN and FIVE inch squares, I made this rainbow chevrons with batiks and white cotton. The quilting is straight lines with 1/4 to 1/2" spacing in between. It's called matchstick quilting. Watch the video below to see a sample of it being done on a long arm:

I did my quilting on a mechanical machine, WITHOUT A WALKING FOOT.