Do you have closets without doors?

No, I think even nicely organized it gives the bedroom a messy, unpeaceful vive.

That would drive me crazy. Even the most well organized closet still brings a lot of visual clutter to a space. I wouldn't want to look at that.

I wouldn't do it. My bedroom is very calm, and neutral colors. And my wardrobe is not. I don't like clutter, at all, and I know there is no way I wouldn't have it cluttered in two days.

I took the closet doors off to paint three bedrooms when we moved into this house 11 years ago and they are all still stacked in the garage. 

Without the doors we were able to put a chest of drawers in each of the kids' closets and make more efficient use of the space. DD did hang an Urban Outfitters beach theme tapestry from a curtain rod over her opening a few years ago.

The other room is my office and I don't miss the closet doors at all.

Doors can limit how you use a closet most efficiently IME.

Only if it was an office and was using the closet as a nook. Something like this:

If it's an actual closet with hangers, I don't think it does anything at all to make the room look bigger, it just adds visual clutter as busy said above.

We have a home office that was always an office (by that I mean it's not a bedroom, it's a room on the main floor just beside the door) that has a large closet full of shelves. When we bought the house and moved in, the closet doors came off of it in the reno and never got put back on--on purpose, because I couldn't see why we needed doors to block off shelves. I keep all my scrapbooks in there, as well as pretty baskets full of office supplies and my sewing stuff. I lasted a few years and then hung curtains to close off the shelves because, even though they were always neat and tidy, they really weren't restful. My eyes need more 'resting' space than open shelves provide, and my brain just can't concentrate on my work if there's something else for it to concentrate on--like books and bins!

If I were to remove a closet door I would only do it if the space was going to be used as a tiny room and furnished. If it is going to be a storage space I want to be able to close it off. Even neat storage can be visually cluttering especially with hanging clothing. If the storage is bookcases, or something similar that you don't normally find in a closet, with baskets and everything under the basket rim it might be ok.
I think your office closet is semi ok because you have restricted the color palette in the space and don't have the hanging rod crammed tightly with clothing. I don't think you will get the same result in a closet of mixed color palette and mixed clothing styles. Most of us tend to have slightly more clothes than a closet should really hold.

Sliding barn door—hardware is easy to install and you can get really beautiful wood doors or other decorative materials (faux barn door look).

I have a closet double the width of yours and I have a tension rod and 2 curtains that stay closed most of the time. I like that look much more than the wood doors looked before.

No, it would drive me nuts.

No. It would make me NUTS to have stuff in there that was visible, no matter how organized.

My DH took the door off my laundry room a few years ago when he moved the washer & dryer from one wall to another one. It drives me nuts. I really want it back on, but we went to some open houses for new builds and several had pantry and laundry rooms with doors with frosted panels. They were etched with the words “Laundry” and “Pantry”. Some had a design etched on them. They were super cute.

I like the frosted panels because it gave the room an over all lighter look, yet covered any clutter. I’ve decided that’s what I’m going to do once I repaint the laundry room this fall.

Perhaps a door with a frosted panel would work. A custom vinyl decal with your company name and logo could look nice too.