This self portait is intriguing. You have an underlying angry expression, but my guess is that it wasn't what you were going for. It's probably just the angle of the eye-glasses and your eyebrows, and the absence of a smile.
I had to stand for 1.5 hours in a hot bathroom to see myself in the largest mirror and without interruption. By the end I nearly fainted it was probably the reason for the absence of smile.