Position of built-in spots bathroom, new construction

Hello everyone, I have to decide at very short notice where the holes for the spots in my bathroom (new build) should be made in the concrete ceiling. I have considered installing the spots only on the outside, about 50cm away from the wall, because I believe it creates nicer light when the wall reflects it. The tiles are dark anthracite and go up to about 120cm, the rest of the wall is white. The ceiling spots themselves (power, color temperature, etc.) have not yet been decided. What do you think, what would be the best arrangement and why? Does my idea make sense? The bathroom is marked in yellow in the photo. Do you have any other ideas? It does not have to be a classic arrangement!

Our bathroom is 9 sqm. We have 4 ceiling spots - that is more than enough for "bright." Harmonious light comes from the mirrors and the "cozy" light in the niches.
GD

Our bathroom is 9sqm. We have 4 ceiling spots - that is more than enough for "brightness". Harmonious light comes from the mirror and the "cozy" light in the niches. GD

Hey GD, And at what distance from the wall and at what distance from each other did you do it?