your stitches look fine & when you switch to thread color that matches you will not see those corner/point areas that you see now, when the quilt is finished, quilted & bound the stitches will not really be noticeable unless you take a magnifying glass to it & people looking at quilts seldom look that closely- give yourself a break. as for stitching through the paper...if you have mastered basting without why start? when you sew through the paper you have to remove the basting stitches in order to remove the papers & the papers do wear out faster- when you fold fabric over & baste without sewing through the paper the basting stitches can stay in- they are not noticeable on the front- and removing the papers is an easy task- without damaging- except a little bending- they are easy to straighten out for reuse. I've never really understood why anyone would stitch through the papers- seems like so much more work than necessary.