I'd suggest finding some online tutorials to help you through the basics. It looks like you are very new to 3D art, or atleast character art. IMO the best thing you can do is start at the begining. Start creating anatomicaly correct base models using online guides and learning anatomy. Once you practice this enough, things…
You're not ready to rig that yet. You clearly need to learn some art anatomy. The proportions are all wrong and it doesn't read as a natural human being. Go to your local library and check out some books on art anatomy. Also, you need reference. You need real examples of the human form to look at when you model this…