Re the mousse - try matching it with different shades of grey, any greens, blacks, creams, beiges, light coloured denim.
So far i have tried:
A grey & black jumper dress with silver jewellery, and grey knee high suede boots.
And greyish toned jeans with a cream sweatshirt, and a light tan gilet, light tan boots.
It works so well with nearly everything - and the colour is not at all one-dimensional, it is a unique shade of grey - it has hints of green, grey and blue in it, and it changes in natural and artificial light.
Depending on what you wear with it, depends on which colour 'pops' out!