Tom Riddle's Dark Mark: Enigma

Media: underpainting in guache paint and copic markers, but essentially painted over in digital media.

Tom Riddle is one of my favorite characters. I especially like his dark, enigmatic side-- how does he go from being a charming schoolboy who can fool the school into respecting him, to being a mad Dark Lord? Fascinating.

Companion piece:   original sketch: fav.me/d7gfvka

Gentle critique is adored. What do I mean? If you see something odd, please tell me specifically what it is-- I keep your words in mind for the next drawings too.

Eeep, okay guys. Apparently the hand needs shadow, he's cross-eyed, the shoulder needs a darker line, and the dark mark under jaw and mouth are weird. Gaah, one day my people will look like proper people. T_T

Edit: I edited the line to the shoulder, redrew the hand, edited the skull, and moved the eyes. Then I played with contrast. Thoughts?