Sculpture, I love Iris Bleu Gris too. It's the scent that taught me how much I like iris and thus lead me to many other iris scents. It also sets the bar very high for them too. In that regard it simply blows away Prada Iris. There's no way I can wear the Prada after knowing IBG. I urge those with other reactions to contribute, but for me, the Prada doesn't even exist.