Serge Ramelli has great free tutorials, he sends out 2 a week if you sign up for his newsletter and you also get the RAW files.
On top of this he also has some great tutorials that you can purchase and he often has great discounts.
At the moment you can get 40% OFF
This is one of the images I processed using the tutorials and workflow that he has taught me.
I hope you will find this as good a resource as I have.