Whew woman, what is this? A proper, luxurious bar or some Starsbucks spin-off?
The size doesn't match.
A champagne flute-style glass should not be holding more than 300 ml of liquid. Here we can see her palm compared to the diameter of the glass' aperture side, and it sure looks like the glass' lips was at least the same size as her balled hand. Therefore, those was not champagne glass, but just plain ol' glass, between milkshake glass and sundae glass.