@karen what type of grout did you use on the subway tiles?? also thanks for everyones help, I think we decided on Colbalt blue shower floor, White Subway Tile Walls, Brown Wood Planks, going for a spanish type of shower from what the Tile lady said. Now to figure out what to do with the threshold. Not sure to cap with with blue shower floor to meet with the wood planks, or if I should wood plank the outside of the threshold, and top then do the blue penny on the inside of the threshold.

We need pics to help.

You have: WARM travertine tile on the first floor. You have DARK warm wood cabinets. You have WARM countertops. The LAST thing you want sitting next to that BEAUTIFUL WARM coloured stone is gray. No gray. Nothing in your home says "I need gray to make it perfect". Nothing. Your furniture will change. Your area rugs will change. Your wall colours will change. They will all change inside of 15 years. But your PERMANENT stone or tile floors will STAY. If you must use a tile next to stone, I suggest working in the same tones. You can go darker or you can go lighter but stay inside the SAME TONES as the travertine. If you REALLY MUST HAVE GRAY - then rip out the travertine and start again. Gray and peach stone/tile do not like to play nicely together. It screams out, "I didn't want to pay to do it properly." I would recommend finding MORE travertine in a different sized tile and add it in at an angle (diagonal install). You can find a stone that is either a little darker or a little lighter. You can then add a decorative boarder to the rooms where you are installing it so that it looks like you did it on purpose. This is a great way to add more of the high-end stone to a space that already has high-end stone. But please do not add gray in with peach. They just don't like each other. Flooring snobs, like myself can see it right away. We KNOW when something has been done piece meal. We also know when someone did the piece meal NICELY vs. someone who did it without a thought to the overall look of the floor. Compliment the stone you are keeping. Let your area rugs turn the space gray. That trend is quickly dying. It makes sense to throw out a rug in 3 years. It doesn't make sense to rip out a tile floor in 3 years.

So, continuing the wood flooring and putting a warm tone in means either the white tile with brown veins or going with hardwood but keeping it more oak than grey? Of the wood stains (attached), does that mean that I should do, for example, the natural oak over the driftwood or stone grey? Stone grey is what I had planned for the rest of the house. I have lots of natural south facing light which is why I am not worried about it being cold. Thankful for your thoughts!