Thanks for the comments, guys.
Here's a new version.
Tweaked his face to fit the things junkboy mentioned, hopefully it says more Arnie now.
Also, did three height tweaks: the first is the original, in the second i lowered his torso and jacket a bit, and on the third i took some height from his legs. He looks a bit dwarved in the third, although it's realistically the most correct one, but i'm leaning towards the second more. Take your pick, please
If the anatomy or proportions still feel odd, suggestions are welcome.