I don't like the mirror but if you love it that is great but how will th rest of the space be decorated? PRs are a great place to have some over the top decor , I love wallpaper in there , the mirror you show is very heavy looking IMO as for color if you did some interesting wallpaper then the mirror frame painted in a color from the wallpaper would be my thought.

I don't particularly care for the mirror, either, but of your choices I would go with the red (or is it hot pink?) choice.

I think the mirror is great. I like either the brighter green or the darker pink.

Changing the mirror to the inner edge looks okay but I prefer it as it is going to the outer edge of the frame.

i Love the mirror - i’d be tempted to get a fantastic wallpaper for the room then paint the mirror to match

Some visual with wallpaper and lights

Here is some inspro by Actor Zooey Deschanel and Property Brother Jonathan Scott for quirky and colorful room.

https://www.architecturaldigest.com/story/zooey-deschanel-jonathan-scott-young-huh-manhattan-home-tour

I’d worry all of them will be too much and PR overall won’t be appreciated. My daughter just redid their powder room and used the pic below as her inspiration. Hope you have painted the ceiling as well.

I’d recommend spraying it brass - it’s about how the room feels overall vs one piece on its own and suggest instead adding vibrancy and impact when accessorizing.

Gold frame on that mirror would be very pretty.

I like the mirror, think that the mirror should be left to extend to the edges. Not crazy about the brighter colors on it, the mirror makes such a statement on it’s own, something more subtle better.

How about you show the ACTUAL room and the actual mirror. Spare the AI? Start with that, please? The reality, not Arthur AI what's his face.