
That's the problem with choosing clothes, you stand there and everything is pinned and tucked. The 'dress' looks good, you stand there, you check the front, the back and maybe if you are royal you may sit to check it's length for modesty.
What you don't do is wear it for a time with someone videoing you and that is where you would see things like what happens when you hold a 3D device with both hands, reach out to shake hands, bend slightly sideways, etc.
When you are royal your wardrobe is often not your friend!