Dont always trust the scales

So I've been at my journey now for about 18months now and i started at a whooping 160kgs(353lbs) and im now 83 to 81 i say that because Ive been fluctuating between these same two kgs for about two months now (holidays and quitting smoking hasn't helped) being so close to a huge weight loss goal of being half the woman i used to be so this morning weighing in frustrated by the scale again because i was feeling smaller and lighter and thought i would be the 81 but no 83 so i took a photo and then i seen the progress,
in these two photos i weigh the same but what a difference