#2 is a beautiful block! Got here late, but have another trick learned at my LQS: when matching and pinning seams, push one pin straight through the point to match it (don't go back through the fabric a second time - pin it like you're pinning a butterfly), then pin on either side of the seam about 1/8" from the seam you're matching. This keeps the seam from shifting as you stitch. Although, the way block 2 looks, you don't need any more suggestions! :-)