Followed the instructions above and got great results
I think part of it is choosing a good black under polish prior to adding the mirror powder as it needs that dark base to really shine and look like chrome.  I chose the dark blue to try first and it looked stunning when done!  The part I hate with gels is getting them off, but I'll work on getting better at that.  I love the tangerine chrome powder and will be trying that next!  These are gorgeous colors and I will be trying each of them in turn.
Rating: 5 stars