A weary, rugged sort of hero

[Chris2Balls [:B]]

i like this idea! i still think this lacks in terms of facial construction and expression.
i decided to work more on those aspects in my edit:

i think you should take a closer look at personalities like clint eastwood, who depicts tough, hardboiled characters. abraham lincoln is another, except what you have to take in count is that he's had a hard life which has worn his body. it's very interesting to look at how facial expressions form lines on one's face, especially if one uses a specific expression, thus giving a specific set of lines on the face (somebody who tends to keep their eyebrows raised will eventually, over several decades, get some lines in their forehead, for example).
as you can see i've taken eastwood's typical squint, and literally given the hero a stiff upper lip, to allegorize the expression, if you wish. i've set the light source from above to give more gravity to the face.

anyway, it's good to see you improve and i hope to see more of this!