What specifically do you mean by over processed? Another person thought the tone curve was too far to the left. Since I didn't use that adjustment in Lightroom, I take that to mean it looks too dark, which could be caused by adding too much contrast or clarity? At the time that this was edited, I was new to Lightroom and had just gone through a bunch of Anthony Morganti tutorials. I followed his "quick and dirty" recommendations, which included decreasing highlights to -100 and increasing shadows to 100. I then adjusted exposure to whatever I thought looked right on my old uncalibrated 1998 Dell monitor. He also recommended setting whites and blacks by holding the shift key while double clicking on the word "Blacks" and same for Whites to get the full dynamic range. I think the exposure was too low on camera, so I started with something that was pretty dark.
The processing does look too dark on my monitor, and the histogram for this image bears that out (see original histogram below). There is very little in the upper third of the range (highlights & whites), and a whole lot of pixels in the lower half (shadows). So it looks unnatural (in my opinion) to what I would assume was scene with a much more even tonal range. If it looks good (full tonal) on
your monitor, then your monitor is set too bright, leading you to process darker.
I have
very crudely increased the exposure/shadows in your posted example and posted the results with the new histogram. Now,
your interpretation is what is important. But I agree with the impression that it looks over processed/too dark, and you may not be seeing it on your monitor.
Other than that, I like the image. There is a distracting white blob (outlined) which I'd deal with, and you could consider a little cropping at the right (it's not contributing, IMO).