I love the brightened peach, which has a touch of pink. The taupe is very light, one of the lightest beige taupes in my collection and it makes a lovely transition colors. The plum leans slightly warmer, a bit of red, yet it is quite flattering. It can be used as a liner, as done in my Chanel Spring 2012 Tutorial here, or as an accent color for the outer corner of the eye. The warm ivory is a beautiful highlight shade but again, the downfall is the glitter.
I know the shadow doesn't even have the profile of a typical glitter shadow in the pan but if you don't use it with Too Faced's Glitter Glue primer, the gorgeous glittery bits will fall all over your face throughout the day. If Chanel had found a way for the glitters to adhere to the base color, it would have been a lovely shade. Now the question is whether you really want to buy the primer to use this very expensive eyeshadow quad. Take a look at the swatches and see for yourself!
Bottom Line: Chanel, please improve your glitter shadows. If you find rest of Eclosion's shades appealing, however, it's worth a shot!