Here is a small sample of oyster & palestrina. The flower on the left is done with oyster stitch - I like using velour fiber so you can see the pattern the stitch makes. The leaves are whipped running stitch. The flower on the right has palestrina petals, each surrounded by a detached chain. The stem on this flower is also whipped running stitch; I just whipped it 3 different times, using a different thread each time.