Does anybody know where i went wrong with the hair? im sure its supposed to be lower down(the loose parts).
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I can only think of two things.
One is that there's nothing wrong in your end, and it's just how Iray did the math with the hair's alpha mapping. You can try moving the light to a different angle to minimize this...
Two, is that you used dynamic hair (a.k.a. dForce hair)
In that case, the default dForce settings for the hair isn't optimal, loose strands have less gravity effect per strand, and are perhaps more "stiff" to retain some hair volume... and you can expect this result, until you finetune every little crank and nook with the hair's dynamic behaviour, per surface. Gravity, air resistance, stiffness, etcetera.