I usually gravitate towards chunky cartoony lines, so this is just the second time I've really tried to realistically render the shit out of something digitally, the first being my Cthulhu. I made a lot of embarrassingly bad mistakes on that attempt, which I tried to avoid. For the most part I think it's a big leap forward.
I included 3 stages of development to show my overall thought process here.
(Click to see larger size)