i wont blame a model if photograph does not turn out right.
I feel a bit very very a bit coolness on this shoot. My suggestion would be to take a look on :
1. composition - i personally prefer to left more space on left than right since the eyes create an eyeline to the left. And somehow showing very a bit of arm skin on the very very bottom somehow seems *eh?* to me.
2. colour and contrast - i believe if you can explore further to use cold tones colour to bring out the coolness or push the contrast to achieve more bold look.
3. detail - the overlapping shirt does not feel pleasent to me too.