As you can see, there are pieces sticking up and the top knot looks terrible...
this is an example of a way not to do the high messy bun look. :(
As you can see for this picture the bun has very small good looking pieces out. In the first picture the pieces sticking up were thick and long. But for this picture they are thin short and give the bun character. Also if you want even more texture, flip your hair over, braid down with your hair. Use an elastic to tie it off, then flip your head back to normal and spin the braid into a top knot, It will look bumpy but that gives it the "knot", also I've found that those stay together better then the messy textured buns. I hope I helped!
XOXO Shenae :)