For the Mandala flower, here is a step-by-step photo gallery. To do this you start at step 1 with 7 strings attached and 6 with Einhängeschlingen on 7 folded thread. Other threads are then inserted by most of us with an ordinary shoelace knot. Overall, you need 98 double threads for the flower in the tutorial! However, it is important that there are 7 at the beginning and at least 4 are inserted at every step.
Longtime fan of the "messy bun" - up high or at the nape. 2nd, 3rd day shamp'd (dirtier) hair is usually best. The more natural/untamed/un-smoothed it is, the better the "mess". Great when dressing down or up. Here's one way to do it: Messy Bun Tutorial