As others pointed out, the pose does not suggest confidence. Hands across the breasts and both toes pointed inwards suggest uncertainty, cry out 'don't look at me'. I think at least one arm/hand should be out away from the body. There's got to be a good reference image of a 30s-40s nightclub singer or something similar somewhere (failing at the Google at the moment).
The face bugs me a bit. The eyes are equal in size and on the same horizontal line, implying the face is pointing forward, or near forward. This holds all the way down the face until the mouth, which is at a strong angle. The mouth angle combined with the neck tilt suggest the head should be either tilted or turned a bit.
The hair, on the other hand, has a larger mass on the top on our left than on our right, which looks contrary to the suggested tilt/turn of the head. You could swap the hair left/right or add additional shading details to convey an asymmetric part in the hair. Either would work.
Tourist