At this point your image should be pretty close, but you will want probably want to further adjust Hue and Saturation.. Create a Hue/Sat layer and adjust to your liking.
In the above example I modified: Blue +10 Hue and +10 Sat to make the sky deeper in color and modified Cyan +10 Hue and -50 Sat (yes minus) to pull out the Cyan that was in the clouds. You will have to experiment a lot and play around with Hue settings as it will be image dependant.
If you compare this to the previous image you should be able to see the differences in the sky and clouds. I kinda like the Yellow tone in the tree leaves, but if you don't like it and want them to be more White, see the next step... which of course you could have done combined with the above adjustment. I just broke it up in this example so you can compare.
