I think it looks fine. I am usually very sensitive to that...and the tone of your wood looks perfectly acceptable with your walls and floors. In a perfect world I’d love a huge, white built-in piece with storage and shelves and a spot for the TV with this color scheme. Of course, budget and all...lol! The lights in the shelves seem to be casting a reddish tone...I wonder if you changed the bulbs it might look less red, more brown?

You could try painting some posterboard to match your walls and cut it to fit in the cubbies (no glue or anything, maybe some sticky if you need something to hold it) and see if that lessens the redness, as well as reducing the bulk of the piece. But I think it looks fine, as is.

I actually quite love it against pale gray. It's one of my favorite combos too..grays and browns..not all work the same(and why should they, there are hundreds of them), but this one, I do like a lot

I do see some slight disconnect with other woods/surfaces...much paler flooring, warm white table. It's not clashing, nothing like that, but I think it needs more.. common ground, to "talk" even better

I think that can be balanced out with introducing more elements that will tie it together more

I can easily see a rug for example..something that combines warm tones, and cooler, lighter ones, in its pattern

something like a woven tray on the cofee table..or maybe a bone inlay one?

(also very useful to keep all sorts of how they're called..thingamagics. for TV etc. and others too)

obviously I see just half of the room, so my suggestions are limited by what I see

Don't let someone else tell you how to decorate your home. You are the one that lives there. Just ignore critical comments.

My photo program shows your gray walls have orange tones that work perfectly well with the wood tones.

It's actually not bad at all. Introduce a rug, pillows, paintings, etc. which have warm tones in them and you'll be fine.