If you haven't read this, go for it! Grey is fast becoming one of my favourite colours! Maybe it's because of the magical J Herbin 1670 Stormy Grey, and the sparkles in it. Grey is a complex colour - it also has its shades and tones, and its warmth and coolness. To use a much overused term - there are REALLY 50 Shades of Grey.
A pity I don't have such great drawing skills as to show the depth of greys.
I hope you enjoy greys as much as I do! (Or at least, not discount it)