Real or Fake? [answer]

[Falcon]

ok, do you wanna tell us how to do this!;)

Seconded. I'm still not getting my clouds _just_ right. Any hints welcome (and yes, I did read what tutorials I could find).

[Tangled-Universe]

Oh wow...that full size image is so sweet, great work!

[Mr_Lamppost]

What I am still having problems with is the correct fractal and getting enough contrasting tall vs. shorter clouds.

but that's the real trick isn't it. 

Let me know when you get it sorted because i'm Bu****d if I can get it right.