It's a start, that's for sure. Nothing to be shy about.
My first piece of advice would be to review anatomy. Look at how people move, how females move, etc.
It takes a lot of patience and practice, but if you're passionate about what you're doing - you'll eventually become a pro. Time is all you need.
The concept is there, and you've positioned the bones well enough. It's just key framing really, and you have the basics understood - so you're probably further along than you think.
You don't have a set or environment, so no comments there - but if you did put them somewhere and add some more mood lighting it will help "mask" any faults in the animation. Anything you can do to ground it, as in, make it seem "real."
Good start, keep at it!
Edit: Oh, and I'm not familiar with the rig on the models you used, but some simple facial animation can go a LONG way. Don't forget, half of a scene is in the face.