Your quilting looks very good. I have been hand quilting for many years and, believe me, my first project wasn't nearly as nice as what you are working on. Like so many other people have written, practice is the key to hand quilting. You will find a natural rhythm and decide what works for you. In the end, your quilt will be appreciated and cherished because it came from your hands (not the size or exact regularity of the stitches). Enjoy the process!