>>6101095The top one with the 2wide pillars looks coolest to me.
Buildings with just one window per floor exist, but if you want it to feel more big and stately you could maybe try to squeeze two next to eachother in a slightly wider facade. Going for two windows on lower floors and a single stately master bedroom balcony window on the top will probably look cool.
If you really like the 1x1 round brick window frame on that floor, i might suggesting using jumpers to make it pop out of the facade by half a stud.
Making the "pedestal" (sorry if that doesn't make sense, i'm post-nye crunk) of the building on the ground floor match in style with your cornice? Like more fat and flowy instead of slim and spiky.