Honest opinions, please, suitable for RL 
I am 50.
Have mid-brown (hennaed) hair.
Some wave/frizz 
I live and work in semi-rural suburbia.
I have finally come off the fence made an appointment to have my mid-back length hair cut to a pixie - the change in length does not particularly phase me, I've done it several times in my lifetime. It's only hair
Here's my question: I quite fancy something really very short sides and back (maybe a gentle bit of undercut?) with a longer top. Am quite happy to be a bit edgy but not ludicrously so. I wear no make-up day to day, I have no facial piercings and no tattoos and work in a job in which I really don't want to scare the horses. Or the neighbours.
So all the many lovely mohican pixies I have wasted hours and hours on looked at online are really not an option.
So, am I having some kind of hair related mid-life crisis? Am I nuts?
Should i just embrace my inner Deirdre and settle for Middle-Aged Hair??
Help!