Mirror of the soul

So after reading your summary, I see you used charcoal. What a pain in the backside of a material to use!

You've clearly started to learn the art of detailing and you've made a really big effort here.

However a few comments;
Generally the black bit of the eye is actually more oval shaped than rounded, we don't see this when drawing from a mirror image of ourselves as our eyes (when there is too much light/not enough lights, concentration, etc) tend to mess up our way of seeing, so you'll see it as rounded rather than oval.

The colour of your eye (mine are blue, so for the sack of the Critique), the blue tends to normally (and obviously) be the dominant of colour, the zig zag lines you've drawn is a great start to the "shading blues", I'd suggest next time is to draw overlapping kite shapes and wiggling lines that do not conjoin. If you take a picture of somebody else eyes, what I've said, those shapes will now appear! (Ta-Da!)

The white of the eye (the eye ball) normally has some squiggling red lines in the corner. So get that charcoal, sharpen it to it's pointiest and sharpest and get squiggling!

Under the eye is normally wrinkles or "skin spots", so same again, get a sharp charcoal and lightly draw those lines and spots!

I hope this is helpful and I cannot wait to see more of your work! Keep it up!