When creating any block with points extending to the edge, the point should be 1/4" in from the unfinished edge of the block. That way, when it is sewn into the quilt, the points won't get cut off and rest perfectly at the edge of the connecting block, sash, or border. It's difficult to tell from the picture, but your points may be more than 1/4" from the outside edge of the unfinished block. If it is, it just means you need to double check your scant 1/4" seam allowance. In this case, your seam allowance may be slightly larger than a scant 1/4". Otherwise, the block looks very nice and I like the fabric combination you've chosen.