Yes, I wrote Reality but I didn't write Lux, this is more an issue of understanding Lux than knowing the innards of Reality. I mentioned the fact just becauseI hope that you get to the point of not retouching anything. It also depends on the number of samples. Some times you just need more time. 

If you got some results with the hair then you are on the right track. It might be that you need to work on more than one figure/material. Also keep in mind that the scale of the objects plays a role in this. Since Lux is physically based, there is a difference if an object is 1 meter or a 1 cm tall. You might need to make drastic changes because of the scale.

 

Paolo

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