You did well, good job. I would split that top one again and see how the split goes around the knot. You might get a very interesting stave there. As long as the other half makes a good stave worst case you can either do a real short sinew bow (cutting off the knot) or have a billet to mate up with another similar piece of wood. You will get others like that, I guarantee it. Splitting up staves when the wood is interesting is almost as fun as making bows. I'm glad you listened to Pappy and not me too.
George