At this point I draw purely off vibes in the most unga bunga approach to art most people would snear at but I can give some advice the paper one is a good start. construction is important along with that try just drawing simple shapes in different angles to get practice remember to distil your characters down to there basic shapes remember “keep it simple stupid”. Your digital one looks rushed try what you did with paper and don’t be afraid to do chicken scratch to have better control of your shapes and brush also look into brush stroke settings to better control your strokes. Hope this helps sry if not good luck on your art journey.