Your backing is not layed out flat enough and the puckers are already there . Spray basting will help but there is the second hand mess of overspray ( glue going everywhere you DON"T want it to go and also the smell....) It also looks like your stitch length is too short.
Rip out....start over....go slow.....try to enjoy the learning process of quilting. Every new project brings it's own new things to learn!!
jodi