MITILLY Women's Boho Polka Dot Flutter Short Sleeve V Neck Button Down Swing Midi Dress with Pockets, Floral Navy, Large

Do the buttons work and unbutton or are they ornamental?

Will you ever make an xs? i tried it and it's beautiful but not small enough... others also wish there was an xs as well (in the reviews)!

It looks to be pretty low necked, does it show cleavage? Would I have to pin the top together?

How tall is the model, and what size is she wearing?