Is that what you saw when you were standing on that rock with the camera in your hand?
You can change back to RGB Color mode in 8 bits if you want before saving. Also you can skip step 5 if you want. It's the settings for the web sized version you posted anyway - it might be the same or different if you're editing a larger size image.
Lastly it looks like you may have selected around a rock (bottom right) and through part of a water sheet (top left) when you did what you did. A small 30% opacity smudge brush or a 25% blur brush can melt those hard lines back in naturally. That's kinda anal but I could notice it.