Very interesting photo...I like the difference in tones between the arms and the chest. I think you captured the feeling... Next time tell the model to take it easy on that left breast!! It could really put her out of commission and spoil someone's evening! :~)
You have succeeded in conveying one of the two. As to yang, anxiety is palpable, anticipating, waiting, faceless, unknown, alone, but not necessarily fearful. The anxiety of joy is just as palpable. That is what you conveyed for me. Do more.