But there is a danger hidden in tutu as well: one step from beauty and grace to awkward and silly look.
By the way the word "tutu" came from France. It is a modified slang for "cucul" - so were called buttocks of the dancers streaking on the stage. This is one of the theories of etymology of this word, for more see Wikipedia.
How to wear tutu and look amazing?
Here I gathered really beautiful tutus from world-known masters.
There are five simple rules (or myths?) about tulle skirts.

Well, this is true, but long tutu is fantastic on pretty big ladies, if there are not too many layers and tulle is not stiff. It looks romantic and dreamy, and hides everything you'd like to hide. Everybody knows that tulle skirts consists of layers that flow and ridge, but nobody knows how many layers exactly are in your skirt. This is optic illusion that tricks us: human eye sees full skirt, not full bottom and legs.