It's OK...
For one, please don't use a white backround. Make backrounds on your own. For two, Please work on your lip syncing. Don't just make some empty black shape and call it a mouth. Try filling it in with something, add teeth or even toung when the mouth is open. For three, when you are doing Frame by Frame animation, please use the onion skinning If you haven't already, it will help you by showing the frame before the one your on. For five, I think you should use a tablet to draw. Your drawing already look good, plus you used the gradient tool to shade them, so that will probaly give you a head start. Those are my suggestions for your next release. If you release any more, you could probaly be very good at this. You definatly have the talent to. ;)