Long grey hair - if it is taken care of it can look very beautiful. The key is to avoid straggly long hair which simply makes you look older and out of date. If you keep your hair long, you must take care of it.
My hair is silver streaks over dark brown white came in loose curls but frizzy unless I oil it. This is the most beautiful hair I've ever seen! Have to start taking care of myself for a cha (Pastel Hair Silver)
Blonde highlights for gray hair - here's a good idea to camouflage gray hair with blonde/gray-ish highlights. Upkeep would be easier if the highlights are more "grey" than blonde so not as noticeable when roots grow out.