1. Did I improve?
Answer: I haven't seen your other drawings, but it looks like you definitely did.
2. Should I make it into digital?
Answer: Only if it would be easier for you to color that way.
3. Do you have any critiques?
Answer: The legs need to be longer than the upper body, the arms look a bit short, and the legs don't appear natural. It looks like the body was stacked on the legs, instead of the legs being attached to the body. Are you following me? Sorry if I wasn't clear enough.
4. Anything else?
Answer: You made most of it very even, which I like. If it helps you though, I would recommend drawing lines for length, placement, etc. Great job!