Here is the second half of my tutorial. This begins with painter and then goes into photoshop. I used a pc so there may be a couple of minor differences for mac which I am not familiar with yet.If you have any questions let me know. You can post them or send me an email.
Hints: Save constantly! Play with the settings until you find what you like, every image is a little different. I am self taught and this is just how I work, so there may be better ways of doing many of these things.