Wow looks great!!! I found a great tile site, I used to go to estate sales too but now I do most of my ordering online from Glasstiledecor.com - they are so cheap they have great brands, great prices and free shipping - hope this site works out as well for y'all as it does me - bc i am a mosaic nut! Here is a link that might be useful: glasstiledecor

I have tried multiple applications in an attmpt to get rid of the haze. So far the most success I have had is with Mapei ultracare epoxy grout haze remover. It takes a lot of time and scrubbing. I applied the solution to a small area. Let it sit 20 - 30 minutes and then scrubbed with a sponge scrubber. Rinse thououghly afterwrds. It takes a great deal of time and effort to do a small space. My entire kitchen has grout haze. I have finally hired a floor company to come and strip the floor - I don't know if it will work any better but I don't have the time to spend one hour scrubbing a square foot of kitchen tile.The tile and grout is lovely - I just wish my contractor had known the grout was not like ordinary grout.

I believe the difference in color is too great with the white and brown. Why? 3 reasons 1. The products that are cemented to the building you will not redo anytime soon. Messy , dirty, expensive and just not worth the trouble  2. When you add a product to the building structure. Windows , floors they must last a long time. Durability, wear and tear, and STYLE. All equal a story of when the home was designed.  The look over a period of time 10 years + and the home will become "out of date" Needs a face lift . 3. The homes we admire, the Museums, Churches, Libraries, Opera House have one common thread. At a glance they are timeless. Built in 1940, 1990 etc  The crystal clear item is not seen  For this reason I would not go "trendy". Generally our first choice is the right one. Simple and elegant  How do you change this ad time moves on. Color Bedroom a change of bedspread. Bathroom towels become a dark navy or  deep forest green. Yellow for spring  Paint a wall blue, hang a piece of art  The change is simple and your money well spent for resale  Take a moment to do another board  Remove the brown and replace with a neutral. Try an Odegard runner - There are so many options  Enjoy

Design-wise, it just depends on how it looks. Usually it's shiny on wall, matte on floor. But it doesn't have to be. Show the tiles you're considering and...well, people will probably STILL ignore your request and keep saying it's too slippery and not answer your question (even though you are aware of that and I think it is safe to assume you will not use it if it is not suitable in that regard)... anyway show the tiles and see if that helps people decide. There are normal things that are done, and you're not doing it the "normal" way, but that doesn't mean that your particular choices don't work that way.