I'm looking for suggestions for bathroom mirrors - I want to replace what the previous owner left behind.

The first two pictures are of our master vanity ... it's a Hollywood bath setup. With the off-center sink, should I stick with a smaller mirror above the sink, then do something with shelves to the left? Or, would it look better to have a large mirror spanning the width of the vanity?

The other two pictures are of the upstairs guest bath. We need something at least 30" wide to cover a plumbing access panel.

Thoughts?