I think it will not suit the big of bosom at all especially if you have a small frame.
You'd need to either get the dress big enough so as not to have the buttons pull open on the chest in which case the rest of the dress will be too big or big enough to fit the rest of your body in which case the buttons will gape on the chest.
Also that drawstring is too high (well on me anyway) and would tie above the waist instead of at the waist thus making you look much bigger than you are.