I haven't ever used Photoshop, but it's my understanding, the two are pretty comparable. I started learning Paint Shop Pro years ago, like it, and never felt a need to try Photoshop. I know that many people get great results using Photoshop. I've never read anything credible that would indicate either one to be superior to the other.

I don't have anything higher resolution; I used the link in the first post. I took another stab at it based on David's reference [PSD] [JPEG]. I like this version more because the skin tones are smoother and more faithful. I left the cool highlights this time because that's what they would look like in real life. I left some color in the trees too, but you can suppress it by increasing the lightness and decreasing the saturation of the cyan channel. The most notable thing I did in this version is to use the Channel Mixer to recreate the blue channel from the red (new blue=80% old blue + 20% old red). If you look at the blue channel you will see that it is seriously damaged.