The two styles shown are variants on what I would call a mushroom cut. The latter reminds me of styles that women were wearing in the eighties but that with a modern twist. I like it but haven't seen many women with such a style - so whether its a new emerging trend or not is hard to tell.
Having said that my wife has been contemplating having her hair clippered very short above her ears for a couple of months now. What appeals to her is the contrast in length as she can no longer be as flamboyant with colour due to her work.
Having seen the occasional similar styles I believe she has decided to go for something similar, although it wouldn't be a mushroom cut as she doesn't like them, at her next appointment, probably in a month's time.