Personally, I prefer the look of the globes at different heights, like in the image from West Elm.

Yes, I think that it's probably just personal preference but I think the varied heights is much more special and interesting looking. (then I guess you get to agonize about the heights lol)

I think it depends on your personal style, and what else is going on in the room. I would pinch a few of them up with a close pin or something just to see how it looks.

Definitely different heights. The way it’s hung now they’re not exactly the same height and that just throws it all off and makes it look sloppy. IMO

Different heights....too linear hung like that and especially with the windows behind they emphasize the linearity. Need movement!