The semi flush mount is fine for your ceiling height. I think the bigger question is do you like it? Sounds like you're not completely thrilled with your choice. Your chosen light doesn't stand out and kind of disappears and blends into the ceiling. If this is the look you are going for, then it works. If you wanted something more decorative that adds a bit of style to your hallway then rethink your choice. Your hallway doesn't have a lot going on and with the architecture and all the doors you don't have many options for decor so the ceiling light can be a focal point if you want it to be one. If you do decide to replace, I'd go for a larger light with a bigger diameter. But definitely stick with a semi flush mount and not a flush mount.

Hi. Thank you so much for your advice. When you say it blends in, do you mean because of the white glass? I’m not too good with styling these things. The reason I wasn’t sure of sizing wise is because I have to add the same one to the other side of the hall, and it’s only 3ft wide. This fixture is 12.5”. I do want to add some style to the hall but I also want the focal point to be the one hanging from the stairway, I’ll add pictures. As far as adding a bit of style goes, what do you suggest? Appreciate your thoughts.

I think the lights will be fine. My first thoughts are that a brighter paint color , a colorful runner, and art will make your hallway beautiful!