Yes, I heard more detail and more distinct detail due to the overall very quiet background of the Oladra. . . . Ella on Round Midnight had that velvety layer attached to her voice which I missed on the Oladra.
It remain obviously personal references, but for me it was clear that a technically superior apparatus does not mean that the end result is more enjoyable music to my ears.
Bravo to you for performing this comparative audition and for following your ears!
Just because a component is more expensive does not mean that you or I or anyone of us will prefer it to the less expensive component.
Just because a component we own is upgraded to a new version does not mean that we necessarily will prefer the new version. (This is why I advise people not to upgrade automatically unless the person actually auditions the new version of his component and decides he actually prefers it to the prior version.)
I think that sometimes the more expensive component, or the new version of an existing component, increases resolution and detail, but such may not be an unambiguous improvement if somehow it impacts emotional connection or musicality in a countervailing, negative way.
PS: An example of this for me personally -- in a different context -- is that I tend to prefer the original boron cantilever versions of cartridges I like to the "new and improved" diamond cantilever version of the same cartridge.