They are all great, the curved one is exceptional. You are brave trying such hard blocks to learn with. I learned a secret with the curved ones to make the blocks over size and sew them without pinning and then cut to size. Of, course it is hard to line them up for cutting but once you do a couple it isn't too hard to cut to size accurately. I have a 14 year old doing one and they are turning out great. She is using wild print. Can't wait to see how it looks when she puts the blocks together.