These are so fun! Are these characters you draw regularly?
yeah, if you did these characters it won't take long to have your own style like the pictures you liked up top. I never heard of the movie/story you listed in the beginning.
It would be good to see you animate these characters...as if they are the old school stills for cartoons or something. I would like to see you get more familiar/comfortable with experimenting in creating the backgrounds you are interested in and incorporating these characters into them.