Interior Stair Railings
In all cases I think that the thin profile, rectilinear frames and handrails would be appropriate for your home. Here are examples of High contrast use of materials, which will draw more attention to the railing, or materials that blend more with room finishes.
Combination of wood frame and translucent glass frames the stairwell. Glass panels have some textures (visual interest and allow light into stairwell space. Simple, clean expression of materials using glass and wood. I would reduce the scale of the supports to make horizontal and vertical framing more delicate.
Natural steel, not painted, interesting effect as opposed to painted finish.
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