I would either go ahead and tile the ceiling OR tile up to about 7' on the short wall and follow the angle up to about 11 1/2 and just follow the ceiling angle....

I always love a small, classic hex tile. It is beautiful, timeless, and can look contemporary depending on the color. I think it looks great in a narrow space too. I agree with your contractor that herringbone is too busy for that narrow of a space. You room may be 4 feet but it looks like with the counter depth, the floor space will be narrower than 4. This summer we stayed in a vacation rental that had a beautiful, subtle, marble basket weave tile in the bathroom and it just looked all kinds of wrong because it was too busy for the small space. I think the same with herringbone in your space. We did our narrow bath in hex tiles and it looks fabulous. We always get comments on it. I would pick up some samples and give it a try. It is also often easy to find in stock.

That is the problem we have offshore tile mfg's making these sheet mosaics with grout lines that are too big for unsanded and too small for sanded. What you have to do is a double pass or pound that grout in tight to avoid it shrinking back and cracking. If your tile person needs to do small batches on a shower pan get another tile person. You have to let your floor dry to determine if the color is consistent. You can see by the drain it is darker. When a person grouts a floor if they over wash the grout they take out the color. Let the floor dry. What they can do is use a stiff bristle brush and go over the grout lines what that will do is expose the grout underneath and even out the tone throughout the floor. You will see the grout change as you brush. Obviously do it lightly. Then when you seal it will again help even it out. That said cementitious grouts will always show darker when wet. Saker grouts show this even more. Another problem is mosaic tiles are hard to clean out all the thinset between the tiles. Id the tile person does not do this those spots will always look darker. Put a fan in there to dry it out. use a stiff bristle brush across the entire floor. Use a sponge to wipe off the floor. Rinse that sponge constantly as you will be pulling off the grout dust. Let it dry and then seal. It will look 10x's better. There is no reason yet to dig out anything or use any other product. You will expose the true color with brass brush and a little elbow grease. LET IT DRY FIRST!! Beth is correct that Mapei grout does eliminate any color issues but also has its drawbacks on a floor.

The cabinets are all being painted white or a shade of white-ish.... unfortunately I picked a carpet 7 months ago - and didn't think through the entire house of colors - hence why I am irritated with the developer designer for not even recommending this website to me - never heard of it until 6 weeks ago. I prefer sea glass tones of color and this is where a gray based carpet would have been a better option. But too late now.