You know how I feel about trying to make one type of light fixture do all of the work. This is the master bath, your very special and personal domain. Do you really want to be back-lit by 200W of light when looking in the mirror? Your face will be in silhouette, like on a news program where they are trying to protect your identity.
Install a pair of vanity lights, flanking the mirror, mounted at 5 feet 6 inches above the finished floor. This will provide even task lighting for your face. I'm fine with you keeping the two ceiling-mounted fixtures, but I am recommending that you put them and the sconces on dimmers. No one needs to be blasted with light, especially first thing in them morning. Finding that stray false eyelash attached to your shoulder is horrifying enough.