Hey ho,
first of all i would say you need to set your focus just a little bit more on the details in your pictures if you are rendering pictures in big resolutions like yours. The first thing i saw in this picture was the hair that is poking through the hand of the model, the second thing was the arm of the jacket on her left arm. The arm looks twisted and it seems like it's overlapping! Maybe you should play a bit with the mesh smoothing of the jacket to fix this problem.
No hate. I'm just being honest.
The lighting is good so far. This image is better than the most things i've seen in some Daz Groups on Facebook or Deviantart.
Just to be clear, i'm just a new member here. Joined today because of my wife. She told me about this page. I'm rendering since 2014.
Check them out. Here are two of them.
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