Does anyone know the type of tip that was used to create this look?

Thank you!

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if your referring to the ruffles ....I"m pretty sure it's pieces of fondant with the edges ruffles.

Yep - agree w/bakerlady2.  That's fondant - probably took circles and lightly ruffled the edges.

As said above, those are fondant ruffles.  Go to youtube and type in the search phrase:  ruffle doll cake

A LOT of excellent videos will come up (most using the Wilton 104 tip).

I have seen ruffles also made out of buttercream using 104 tip.  Videos on you tube will show you how to hold tube and jiggle it to make the buttercream ruffles. I do believe the ruffles in picture above are made out of fondant. Some people love fondant and some people hate it.  It depends on the person's taste. 

Here is the fondant ......

http://www.cakecentral.com/tutorial/21307/petal-cake

Here is a similar version done in BC

@carolinescakes - That a cool technique above; haven't seen it before.

Thank you all very much!

@Apti   I know, I was intrigued....I haven't tried it yet. So many talented folks out there.

@holliw13 ‍ I wanted to add, I may be the only person  on planet earth who is not crazy about doll cakes, until this one. It is so elegant, and the petal dress is truly beautiful. Good luck!!!!