look like you have some results there ,congrats , not a huge difference in leaf and stem, root cuttings to propagate cephs, all though the leaf and pitcher pulling should be young and mature but newest growth possible to get best results, and the stem must be taken with the cup stem attachment still in place for best results , root and stem only need to be semi covered with media to achieve results , best taken in pre-spring and sown , to get spring growth cycle for best possible normal grow habits/conditions