Over at Craft Nectar, Weeks Ringle has some very smart things to say about the the importance of craftsmanship regardless of the amount of improv in your design. Motion seconded.
One of the things I’m always saying to my students is get the craft right. Command your rotary cutter. Nail down the 1/4″ seam. Learn to press properly. Once these skills are in your tool box whatever you make will be so much more enjoyable to construct because it will fit and work and flow. When you you don’t have to fight your skills, sewing becomes play. And who doesn’t want to play!