I second that. I have been holding my tongue, trying to figure out a way to best critique your stuff without sounding too blunt or even too critical, but honestly, I don't think there is any way to sugarcoat it.
You need to learn anatomy. Even basic anatomy. You need to learn proportions, musculature, and body structure. There are plenty of helpful books out there. I recommend Human Anatomy Made Amazingly Easy by Christopher Hart.
This may sound like you're being picked on, and while you may only have wanted to see positive responses, honestly, the worst kind of advice anyone could ever get, particularly an artist, are the ones where "everything is perfect." It is clear that you need to practice and refine your technique. Go look up some tutorials, get hold of some art instruction books, set aside some time every day and practice, practice, practice. With the right instruction, you'll see improvement pretty quickly.
Also, take your time. As Kit has pointed out, the end result doesn't give the impression that you do. When it comes to art, it's quality, not quantity.