http://ipgd.freehostia.com/copypasta.html
I agree 100% with that link.
If you are starting out as an artist, don't do a single subject, try various subjects and keep going until you get things to look decent, then and only then, should you move to a favored subject such as anime. It will result in your work being many times better than if you just stayed in anime. Even so, you should always try to do varied subjects at least every now and then, so that you keep yourself open to new ways of making things, rather than just drawing only anime girls.
If you need to improve on something, draw from real world objects or people, and then learn from that. Once you get it down, and don't need to use a real world object to understand it, then that means you are ready to make whatever you want in that area (say the human body for example). If you still cannot make something without having to reference it, then that means you still need to study real world objects. You cannot hope to draw something imagined, if you can't even draw something that actually exists, as the imagined thing will always be worse than your realistic drawing. ALWAYS.
Anyway, to your drawings. You seem to make the eyes way too large, and the hair not thick enough. It looks like the hair ends right on the scalp and is only paper thin. Also, headsize is unusually large to the body, and you make the upper body more like a man's figure than a womans. So it looks like a man with moobs. You also seem to avoid drawing the crotch area, and just go with a straight line. You can't avoid that area if you are drawing something where everything else is attempting to be (yet you aren't getting it right) anatomically correct.
So yeah, I suggest you first try drawing some real women or something and then when you are ready, move on to manga or something. And yes, you will have to know how they look like naked before you can draw real ones or ones with clothes correctly. So if you are just a kiddie, then you probably won't be able to do this until you grow a few years older. If you can help it, try not to draw only women, but if you must draw only women, then do your viewers a favor by at least knowing what a real one looks like before you go drawing imagined ones.
