Thanks Mette for taking the time to post more pics! I am definitely going to get Steel
I took some more photos of Steel and Strong today when the light was good. I took a lot more photos of Strong to show how the colour can shift with the light.
It seems to move from a blackberry to a purple with shimmer. It's quite different in the daylight to how it appeared at night which was almost a deep reddy brown/black.
Once it's on the nail, it looks quite flat unless you're in direct sunlight and the shimmer then picks up.