For now, you can see a really helpful exercise I did to help develop a keen eye for correct balance and line of action within character poses. Pose Maniacs is a great place to find tons and tons of great poses, which you can rotate to see a 360 view. That's where I grabbed all the reference pictures you see outlined in red. This seems simple, but it's actually quite challenging to make sure all aspects of the character are correct and appear natural. Hence, the extremely tough part to accomplish in animation: the illusion of life.
Below are 5 poses I chose for this project and the respective reference image. LoMax is a free rig to use for Autodesk 3DsMax and can be downloaded here.