In addition to this, there are only so many picture variations one can do before it feels like, "Is anybody else as bored with this as I am?" Even among very popular people on social media, who actually know how to dress and pose for pictures (unlike me), after a while it becomes way less exciting.
As far as the potato sack dress and Birkies, a certain staff member at one of the institutions I frequent wears such attire pretty much daily, but she is also fabulously overweight. I cannot say that I would do any better, given those circumstances. It may not be fair or just, but I will say that it's much easier to dress nicely when you're thin.