For a contest idea, try something like" you have to draw this using this" Some people use color palletes, themes, emojis for the 2nd 'this

the 1st one is up to you

For a drawing i might need to look at your gallery before suggesting

You actually animate and draw well :O. I guess since you have school try drawing something from a subject you love at school? like if you like chemistry you can draw chemicals fusing together or something. If you like tech, you can draw the binary code 10010101 stuff like that. Yeah whatever you want