I am not the best person to learn from. I will put a link to my junk in my sig shortly since you asked to see it. I am not the best person to consult on anatomy and human figure and such, but I can critique, so here goes.
There is a striking similarity in all your pieces so far that I see. Look at the hip bag of this character. The hair of the werewolf(?) girl. The sword guys neck tie. (Does the white cape with the blue tie go around his waist? I thought those normally went on the neck. He is also facing the wrong way for that pose. Check some FE sprites or FF ones.) And your other sprites have one thing in common. You seem to finish one part, but get distracted or excited about trying another piece. (Laziness may also be a factor.) However, lets get on with this peice. Since it may apply to the others as well. I want you to have very dark thoughts. The main problem with this is that it lacks shadows in the areas where they are needed most. Your light source suggests (coming from behind the character) that it is coming soley from the sword. But that doesn't make sense. Check the shading onthe hair and left leg for example. If the sword was the primary light source, then the hair would reflect that as well. It needs to be darker more to the top left and some in the center. The lighting on the bag should also be switched around. You also need to fix the pose a bit. And perhaps center the chest to the hips. (Perhaps a bit more of the left arm mebe?) But all in all, there's too much light in all your pieces. You should add a darker shade in the areas that need it. I shouldn't have to say where. You lighting should let you know.
And another thing. Don't be afraid to continue because of what someone says or if you get no response. If you show interest in taking crit and at least try to change something around or for the better in your pixels, people will attempt to help you. And besides, you can always use the practice. Sorry if I sound a bit cryptic.