Hi. You could alter mirror frame, or shelves, diy? more of washed/ distressed etc. in counter's grayish...

W 17.25" / H 10"

Generation Lighting Lighting 2-Light Academy Sconce, Brushed Nickel · More Info

With current light, possibly... The circle's leather strap attaches to a rustic metal frame ending in a charming buckle / while the Farmhouse Square is accented by real twine rope.

Large Farmhouse Wall Mirror, Rectangle · More Info

Originally I was thinking of going with a larger mirror the width of the sink. I like the first light fixture you posted. The sink is 30” wide, so maybe do a 3 bulb? Hadn’t considered whitewashing the shelves, but I love the distressed look. I originally put the wooden shelves in to give it some warmth, but I don’t think it had the effect I wanted.

I’m also a sucker for a mirror on a rope, lol

fir wood frame 31.5" wide

Chatham Light Wall Mirror · More Info

What didn't you like about the warmth of wood? if each is thicker than the counter, it could seem too heavy/ chunky. I think there are several ways they could blend in with wall color, so the size isn't noticed.

Ahhhhh, you’re right! It does bother me because it’s thicker than the counter! I couldn’t figure out why I wasn’t satisfied, I thought it was the color, but it’s the thickness!

Same stain on mirror frame and shelf, and use only the bottom shelf? and do your bohemian but safe LED candle, and tiny macrame hanging?

I like canvas art because I wipe water off easily. Here's a possible scale for yours, with mirror larger than art. Art shouldn't probably be wider than the toilet. Idk if this houzz excerpt helps:

"Having lighter colors at the eyeline will help a bathroom feel clean and airy, but try balancing them with a deep color lower to the ground. This adds a sense of richness that helps keep the space from feeling too stark, without making it overwhelmingly dark. Plus, it beautifully sets off classic white fixtures."

Santa Monica - Full Remodel · More Info

The 3 bulb --- do you have any other lighting -- ceiling?

maybe you need that, and adding dimmer switch is good option.

How large is the room?

A grey and bright rug.. could balance it out... well, if shelves were still a little lighter.

Safavieh Porcello Collection PRL7735 Rug, Light Grey/Purple, 2'4" X 6'7" · More Info

For a bathroom idk, but it could look industrial... I can look tomorrow...

Jaipur Living Glacier Handmade Abstract Area Rug, Gray/Silver, 2'x3' · More Info

This seems exciting, and has a slight metallic.

Metal Industrial Light · More Info

Weave & Wander Orin Modern Abstract, Silver/Gray, 1'8"x2'10" · More Info

Choose a beautiful mirror. Mirror is one of the important beauties to focus upon in bathroom.

I ordered a larger mirror and switched out the light for a 3-light fixture. Trying to figure out now if I can sacrifice the wall storage to hang art. I like the two-tone wall idea! That bathroom looks amazing!

Here is the new mirror and light fixture (still need to patch the wall and get more bulbs!)