The portal isn't the best place for feedback or critique on unfinished works/experiments. Only finalized works are allowed. After all, would you really want to be known for that guy to have his userpage full of tests or demonstrations, or would you rather be known for finished and fine-tuned works?

The best place for critique would be the forums themselves, try the Animation forums instead of here. With that said, do make use of your free Dumping Grounds cloud storage for submission like these!