To think about the same thing in other words. If you can capture the content of those really nice shots you've posted more or less the same and only the colors are off, then you are doing things behind the camera just fine. If you want to test how well things are going behind the camera for you vs. what you are trying to match, take both your study images and some samples of your own images into an editor and Desaturate (Black and White) them all and you will see if there are other areas that you need to focus on as well. You also have a decent bit of play room in editing to re-adjust overall exposure as well as highlights and shadow areas, especially if shooting in RAW in case just a bit of curves or RAW sliders will get you the match you are looking for.
This shot was made at f/2 on 85mm:
You can compare it to this one:
I've got a feeling that when I edit photos in Lightroom texture starts to disappear to soon comparing to what I could get on full-frame. Or it's self-deception, I don't know.
You've improved the shot a decent bit in editing vs. the original but you've also deteriorated it in spots, this is exactly where your weakness is. You've over-saturated areas in the edit and have made the entire image a bit florescent and haven't leveraged other options that are available and that would have worked much better. You don't need a new camera if color is your issue and concern, you need to work on your editing skills. Best regards.