I made one of the quilts from Picture Play Quilts for our daughter, Valerie. Val is about 3
months old here. (I think all the pictures I have of the quilt have a baby on it.)
It was fun to make, but I did use only one fabric per square instead of the four you suggested in the Tiny Treasures pattern. And my treasures weren't so tiny. ;)
Fussy cutting makes me nuts, but that trick you had with the template attached to the ruler helped. Pretty clever, that.
This quilt was made with the "Tiny Treasures" pattern in Picture Play Quilts