Jesus, that list of links would terrify even myself. While the pages linked are helpful in and of themselves, posting a metric fuckton of tutorial and reference links without any sort of context isn't exactly useful.
billybob:
I would suggest studying up on human anatomy. At the very least put yourself in the pose you're trying to recreate and look at yourself in the mirror. Even better would be to wear similar clothing. You should immediately see a ton of mistakes.
1. Right arm is entirely too short. The musculature on said arm is also, well, imaginary.
2. Left arm looks broken. I think it's the way the wrist bends, and possibly the low placement of the entire forearm.
3. Brave attempt on the drapery, but the folds are, as with the musculature, imaginary. Again, take a look in the mirror.
4. Ankles are non-existent, and the feet retain the same width throughout. Mirror.
5. Legs are potentially a bit too short. Typically you should be able to bring your knee roughly up to the level of your clavicle.
6. Head is attached incorrectly. It's sitting too far back on the neck. There's also too much face on there (it looks like the face stretches all the way to the rear third of the skull). That said, at least within that, the actual facial proportions are sound.
At least your lighting's relatively consistent. :p
Let's see an update.
[got instaposted by Helm]