Wonderful work on the anatomy and expression here. You can really feel the aggression and exaggeration coming through in your work.
I took a look at the artists you are inspired by; Egon Schiele and Peter Chung's Γon Flux, and I have to say those inspirations come through verry cleanly in your work. The exaggerated facial proportions really come through here.
Though, I felt like you could really push the values a bit further. In most of Egon Schiele's work, the eyes are typically the main focal point. In order to do that, he makes the pupil a nearly black circle while the whites of the eyes are nearly completely white. If you lightened up the whites of the eyes in your portrait, they would have much more contrast and would be an even greater point of focus than they are now.
That being said, this is still excellent work. Your use of the natural wrinkles in the face to direct the eye to your eye line is top notch. Great work.
TLDR: Increase the level of white in the eyes to make them stand out as a point of interest.