Sonic is Iconic
The great thing about art is that while there are unquestionably a few areas in which objectively attractive works of art exist, beauty is highly subjective. Remember that the appreciation of beauty is personal; however, if you’re a student and your art instructor is beautiful, you may want to moderate your ambitions.
There’s usually a restricted amount of wiggle room in art class at school, but technically, you should be all right if you stick to the rules. Consider how difficult it would be to choose one thing, such as Sonic the Hedgehog, as a source of inspiration for all your art projects and yet have your teacher powerless to stop it.