Yes, it is! I also followed your route. First a long time lurker/reader and a little over a year ago I joined and became an active participant.
I’m rather hesitant to use a (google or other) street view image as baseline for colours (et al). You must have noticed that there are some really strange things going on in the screen-grab you posted. Besides that, we don’t know anything about how it was taken, compression, post processing (if any) and the likes.
The light (Sun) in your image is heads-on, so there’s a decent amount of glare and as a result the colours are less saturated. How much is a question that I think will remain open, but as I mentioned when posting my edit: I do think I overdid the saturation somewhat.
About “cutting the image in half”. Not sure if you looked at my sidecar, but I did use a graduated filter to separate sky from the rest.
I’m not sure you should apply 2 different white balance values though. RawTherapee has some nice tools to target individual areas:
This module can use masks based on Hue and/or Chroma an/or Luminance and can use multiple instances. I used 2 masked instances in my edit. A very powerful module which can also be used for colour grading/toning (using one of the first 3 methods).
This section is not available yet in the official stable version. You need to build RT yourself or grab this, slightly older development appimage.
A very powerful module that can target just about any part of an image and then use most of the tools available in RT. It is already part of the on-line doc: RawPedia Local Adjustments
@heckflosse: Nice cars. Especially the one in front! I backpacked through that area. Ireland is a bit to broad to do by foot to be honest, but man is it beautiful.