I'm fairly new at quilting but love it. Took an online course, was very helpful. Your fabric looks very stretched. That was a problem I always had. The teacher of the online course said never, never take out stitches. Practice so you don't have to. I took stitches out of my first big quilt so many times I had to stretch it a LOT to get it sewed. I should have just taken it apart and washed the top fabric and shrunk it and started again. Again the seasoned quilters can probably give you some good advice.