Tint fondant. Combine Royal Blue and Black icing colors to get dark blue color shown. Tint 40 oz. white fondant dark blue using color combinations provided. Using 20 in. fondant roller with orange guide rings, roll out fondant; cover cake. Reserve remaining dark blue fondant.
To make lighter blue fondant, combine small amount white fondant with 4 oz. dark blue fondant. Using 9 in. fondant roller with purple guide rings, roll out light blue fondant. Brush torso with piping gel, then form fondant over doll pick torso. Insert doll into top of cake. Reserve remaining light blue fondant.