Paint for now and live with the rest for at least 6 months. You may decide there is other things you want to change or do not work for you.

There’s a whole lot in that pic to change. Better get a list of all the projects and decide how you want to spend the giant budget that you’ll need.

Wow! Those floors are STUNNING! In those photo, the floors are the most HIGH VALUE item in them. Remember: stone floors are normally FAR MORE VALUABLE than porcelain. Part of your purchase price contains $20/sf of stone flooring. If you do the calculation for your square footage you will find out VERY quickly how much of your mortgage is being held up by the floors (eg. 1000sf home x $20/sf = $20,000 worth of stone floors). Porcelain cannot come close to that value. You would have to spend the more money on porcelain tile to get the same VALUE as stone. You would have to get into the $30/sf range of porcelain tile install (includes labour) just to get $20/sf worth of stone. It doesn't make financial sense.

Remember: transitional means moving from one era to another. Or one style to another. Old floors (or floors that look old...like your travertine) can be the 'old world' item in the home. Everything else can be modern.

In fact the Europeans do this all the time. There is no way a 300 year old apartment in Paris would have the traditional herring bone hardwood ripped out because the owner wants HIGH MODERN. Never in a million years. They would simply 'ignore' the floors can do what they want.

The white walls and the white columns are already in the 'transitional range'. They have been 'white washed' to accept a new decor. The floors are simply pale neutral floors.

And travertine can be refinished...just like wood. The ONE thing I *might change = the gloss level of the stone.

Go ahead and get quotes from stone finishing companies. Have them quote a matte sealant for you. They would come in, strip/grind/patch the travertine and then apply a low-gloss sealant. That's more in line with today's aesthetic (low-gloss floors are highly desirable).

The cost of refreshing the travertine would be roughly the same cost as jacking them out. It is a very good way of keeping costs in line while still offering the newer look you are after.

Of course, it is your home. You need to feel happy in the house. If you feel it is worth $2-$4/sf to REMOVE the stone and then another $18 - $22/sf (total costs = $20 - $25/sf job) to install a lower value item, then you are welcome to do it.

Just remember: stone is more valuable than porcelain.

I’d personally want to remove the columns but I think you may want a vision for the whole house before doing this or that. That looks like an enormous house with a very specific style going on

...and remove all the arched doorways. I’ve had friends do just that in an attempt to “de-Tuscanize” their Florida home.