Two mirrors would add a different element to the space and add more character and texture than one mirror! Either will look stunning I'm sure.

None ,mirrors should be reflecting things worth seeing twice so not the ceiling or the kitchen cabinets or the treads on the stairs . So what will they reflect IMO pieces of art beat mirrors almost always . Even a gallery wall of family pics in all matching frames woulld be better than mirrors in that spot

Patricia - what would you put on that large wall? The hallway is too narrow and well traveled to put a side table.

I like the two mirrors - a pair seems more complete than one to me for some reason

I’m agreeing with @Patricia Colwell Consulting on this one. Either art or photo gallery. If art, I’d do one large piece with an image that can be seen from downstairs where the light is - that means a larger image without lots of small detail. If Gallery wall, meant to be viewed up close, I’d do variety of frame shapes but limit colors to 2-3 & since you’ve no room for table or cabinet, I’d expand the arrangement to below usual table height.

I agree with Patricia on NO mirrors. It could be a gorgeous gallery wall or it can hold a collection of large family pictures etc.

OK - I appreciate all who are saying NO mirror....I don't want to do a gallery wall because we have two of them :) How about an abstract, neutral tan, gray white canvas? Something very neutral. I have included pictures of two that I found as an alternative to the mirror. They look similar, but are differnt according to the descriptions.

Yawn........ mirrors? Will they be interesting or just reflect the glare of the lights?

Wow @BeverlyFLADeziner -how did you do that?? That is great. Thank you. Anyone else? You all are saving me right now!

@verizonmarianne - Once again I’m going with the Pro’s recommendation! The image @BeverlyFLADeziner shows is wow! and the images you found are so pale the wall may as well be left bare. 😉 There’s likely a happy medium with something more colorful & interesting than those pale abstracts but not quite so bright as what Beverly shows. That happy medium won’t immediately draw the eye to it from downstairs in what ’m guessing is entry foyer. All you show us is the stairs & part of light & walls so we have no clues to your colors or style. Find art that makes you smile.

Two paintings.

Ya that was my thought too, why mirrors there??? Imagine you are standing at the door, looking up. How nothing would mirrors be there? Glad to see you've come around to art/gallery wall....

Odd man out here, but I don't think that upstairs wall will show anything well...too high up to be eye level, and the railing interfers with viewing. I suggest paint that hall wall a light, bright color and searching for something to go on the railing.

Or, wall paper :

Wallpaper and take advantage of the panels going up the stairs and mimic them on the bare hall wall.