Don't wanna be mean but when your drawing the left's try to not make a space open w/o the a little gap unless the legs are supposed to be spread apart from each other.

This is for everyone-- Don't go straight into "cartoons" or unrealistic character proportions. Study anatomy and people and objects/animals before. That will help you in the long run with art. It really helps to know the human/ animal etc anatomy before disinforming it into "cartoon" characters. :)

The only tip I have in mind is to go wild with your art! Be yourself!