The first things you do is FORGET ABOUT THE QUILTER WHO DID IT IN ONE HOUR
The second is take your time and at each row let it fall down in front of you. Try to keep some order with it.
Third is take a little time and smooth out the row so it is reasonably straight
And if it twist, just cut it apart and then straighten up when it is finished.
I saw several of these at the recent show in Cleveland where the quilter had added borders to the entire center which makes a very attractive quilt. You could even cut it i half and then add a border to each for two crib size quilts.
I made one in which I used ony one fabric. It was printed in a gradated color the length of the fabric. The one I used was a pastel primary/secondary color way. I cut it into 42" lengths and then cut into 2.5" strips and sewed it together. It always gets ooooos and ahhhhhhs. I sewed them together on the diagonal which took a bit longer but was very attractive.