Hey, I'm sorry you misse out on the free art. What kind of class is this? Are you supposed to showcase your own work? if so, I would not recommend showing mine :)
I've been drawing ever since I could remember, getting al the practice during class times and what not when i should be listening and taking down notes. With years and years of practice, that's where I am today. I really would encourage you to just find your own style! art doesn't have to be realistic :) maybe you can even make bettas from different shapes, or go all messy like and just doodle!
If you need any help on art I'd be more than happy to give you a few pointers. But really, just show your own art and be proud of it! And the more you draw... the more you will improve XD
I certainly remember when I drew the most hideous thing in the world, haha. but I saw that and I wanted to get better, so I drew and drew :)
people say art is a talent... maybe... but I sure did get a lot of practice :)