There are so many quilts that are straight stitched these days and they look absolutely beautiful. I took a class on Craftsy with Jacquie Gering (I think that is her last name) and she does amazing straight line quilting, the one thing she teaches is that the foot is called a walking foot for a reason, you can't be racing to get it done and have the end product come out the way you want it to. Your doing great with the quilts so be proud!