All the details in your room are more traditional including the shape of the vanity and the edge detailing on the marble top. Modern is going to be very difficult.

I would take down the framed mirror and install a mirror that extends from the top of the backsplash almost to the ceiling. I'd mount a pair of new linear lights over the sinks.

Peach and gray might be a good color scheme for the room.

Lovely space. I would lighten and brighten to refresh. I would paint the cabinets white, the tile surrounding the mirror white (Or frame mirror in white molding, paint the tiles around the outside of the shower the same white (NOT the inside just the outside tiles). White cellular shades. Add some trim around the window, in white.. . Same white paint color on walls. Upgrade light fixture. Leave the granite counter and curb alone. add some fluffy white washable rugs and have the tile floors steam cleaned. With the lighting upgrade pick something modern but with a nod to traditional with a curve or rounded edge. that will help it go with the vanity. If you must go with gray paint color, pick a light warm gray, careful with green or greenish tones in a bathroom it can make some skin tones look sallow. post pics as you go!

There's not much you can do, that the granite you don't like, nor the heavy/absurd tiled "lid" on the shower.......(not even with less fussy lights and bigger mirror, new faucets..) will still not overtake.

It's a bath over due for an over haul. Depending your planned length of stay? That's what you want: )

A great big basket shoved under the vanity area will hold towels - no shelves needed.

Paint? Match all walls to the soft white of the vanity. Paint over the tiled lid, The tiled frame on the mirror. Get a new linear light.

Get a soft white shade for the window.

Add a nice big rug......cream and peachy rust.

In other words? No gray: )

The biggest eyesore are the overwhelming tiles above shower and my first decision would be reducing its prominence by painting the same as walls (look into paint type/its application). Suggest a soft white on cabinets, mirror and shower frames, and walls - can’t go wrong. Don’t try to make it something it‘s not; aim for an updated traditional feel.

If adding shelves, be sure they are well designed/incorporated and don’t feel like an afterthought.

I’d add a light over each sink instead, for better individual lighting and visually will feel better balanced. Regarding changing hardware, etc (assume shower as well?), then suggest brass. If not changing, complement. Decide on lighting, hardware and accessories after the metal is determined.

A long double towel bar will be much more functional and look nicer. Suggest framing window and if in budget add a more decorative blind. Add complementary art over toilet.

Make sure you have landed on an overall look and know how to achieve before you start.

Please show the vanity cabinets in daylight. Are they pink or off white?

The last photo showed by @Maureen looks like a great color scheme with countertops similar to yours.

Based on the colors that are showing on my monitor it seems that the previous owners selected orange and pink undertones (counter is orange, other tile looks more pink).

Mother Nature uses green to pull colors together that want to fight each other. You may want to follow her lead until you have time and money to replace things.

As apple_pie_order suggested, can you please provide daylight photos so we can truly understand the color tones of your cabinetry and tile?

Wow, so many great ideas I would have never thought of. To answer a few questions;

-My anticipated length of stay does not justify the cost of an R&R

-I've attached a few close up pics in daylight, granite counter is I guess some type of orange or peach and the cabinets are like an antique yellow, tile is like a light brown. I don't see pink anywhere.

-I could go either way on the makeup space, big basket or if I do shelves, I see I need to extend the baseboard under it so it looks properly integrated

Will paint the cabinet doors as I really don't like the current color. Most likely paint the walls too as they are flat anyways, not the proper sheen for a bathroom. I will not be painting the tile floor or inside the shower stall as my research shows it may look great at first but will most likely not hold up over time.

Didn't realize too that the shower lid is one of the worst aspects of the room. Heck, I could build a dry wall facade over it, is that a crazy idea? I'm good at that kind of stuff, just not interior design :-)

As for the mirror, my guess is that its most likely glued to the wall, so not crazy about replacing it. Instead I could remove the sink backsplash and mirror tile, this would leave no tile to paint I think. Then build a wood frame around the mirror with matching frame around the window. But what would replace the backsplash, if anything?

Will save faucet, door pulls and light fixture decisions until the rest is complete, maybe will add clarity to proper selections.

As for cabinet and wall colors, need to narrow that down a bit. Seems like a creamy white might be a safe choice for the cabinets to keep things bright and not clashing with the existing tile and counter, paint the mirror frame and window frame to match. That leaves the walls, I see grey, white and green hues. What to do there to compliment the cabinets and left over shower stall tile and floor? As Maureen stated, I want to nail all the stuff down before I start and I really appreciate everyone's input.

Thanks for info and new dayilght photo.

You can easily refresh the room with new paint and the new light fixture you already plan. It is not going to be contemporary without a gut remodel. There is no need to fiddle with the mirror that is glued to the wall. Match the new shade to the new paint color- order shade samples in advance.

Have the floor and shower tile professionally cleaned if it hasn't been done lately. The tile and grout could lighten up quite a bit with professional cleaning. To make the floor tile look new, use a grout paint in an off white that nearly matches the tile itself.

Add new fluffy towels when the painting is finished.

IMO adding a really contemporary light here is exactly like lipstick on a pig it is a traditional bathroom so yes to a new light but IMO still traditional and wall color pick the lightest color from the tile and then cut it 25% for the walls . Scrub the tiles and grout and unless you have hours to waste do not start painting the grout then taht stack of nice fluffy towels and be done .

It looks like a classy room. I like it and I think you can work with what you have, but IMO your #1 goal would be to paint the walls in a creamy white (as mentioned above) to blend with the existing floor and countertops. And add other features in that same creamy white.

The gray walls are sucking up your light.

So I understand and agree a creamy white for the walls, but what would be a good coordinating color for the cabinets? I look at "creamy" colors and they all seem to be really, yellow, I'm so over yellow, is there a way to not go yellow and not clash with the tile?

Maybe something like BM Chantilly Lace for the walls

and BM Puritan Grey for the cabinets?... does gray even go with the tile?

Whites can be tricky - we don't see them correctly when we look at small samples.

Chantilly Lace is going to be bright white and make your cabinets look bright gold.

They creamier whites may look yellow on your computer screen or next to Chantilly Lace, but when you paint an entire room your not comparing it to the bright white, your seeing it on it's own and then it stops looking so yellow.

Right now your colors look really yellow because they are next to blue gray - which contrasts with the yellow and makes it sing.

What lighting do you have in the room - you want daylight bulbs to reduce the yellow in the granite.

Three comments:

Change the lighting first. Everything looks different with new lighting and new LED bulbs.

Cabinets and walls can be the same color.

Buy the Benjamin Moore (or favorite paint brand) fan deck. It will save you trips and make quick work of narrowing down the color choices to less than half a dozen.

No gray for the cabinets. Gray will not work with that granite or the travertine tile.. Paint the walls white, and pick an earthtone for the cabinets. I'd probably go with either a dark sage green or Urbane bronze for the cabinets.