Choosing the right bathroom mirror size and placement can make a big difference...

https://shanessuperbdigests.cloudhinter.com/posts/what-mirror-width-rule-should-i-follow-if-the-light-is-above-the-mirror

Choosing the right bathroom mirror size and placement can make a big difference in your daily routine. A good rule is to pick a mirror about the same width as your vanity—around 70% to 80% works well