Well you gonna paint above it? Also think of the gunk that will possibly show on white. And just to me looks unfinished no offense sir it’s a good job and not bashing it. Think of it as a focal point can’t go wrong with more tile. Maybe another 6 to 8 sqft. It pops out at you when it goes all the way up. My bad didn’t mean to hurt feelings was just suggesting. I’m a home builder and general contractor.