Your letters look good. I don't see anything wrong. This bag must be for Slippery Rock University. I live only about 20 minutes from the school.
I also live 20 min. from S. R. Was so surprised someone so near saw this and knew where it is It is for our G. daughter who is a majorette in high school there.
Your stitching looks good in the picture. I had to snicker at the Slippery rock prophesy! I pray you have overcome your concerns. I would use pins. Do let us know how it turns out. Blessings!
I usually pin with straight pins along the edges. The design looks good from here. Try Pins around the edges to keep the top matl tight ! Shonna