I am not an expert reviewer yet but just tried an imp of 51 and I really love it
As others have said it is a fruity light floral blend but really fresh white flowers and citrussy fruits
The dry down smell really does actually remind me of Thierry Mugler Alien but much fresher, less heady and with something more sweet and complex behind it
I love it and am seriously considering a bottle - a perfect scent for Spring and for work