@B00k W0rm,
That actually isn't half bad for a newbie. Just next time maybe change the way the curves are done. (As in the actual adjustment, the shape is fine )
EDIT: Now that I look at it a bit more, it looks as though you used a conical gradient - I wondered if my explaining was detailed enough But I'd be interested to know how you did it.
Now on with moi!
After Step 10, I kinda forgot about the tutorial ( Typical me), so I added my own stuff after that. But it looks as though I did pretty much what was written
My outcome: