Prompt: A classroom full of students with a creepy smile, a lot of teeth, big smile, splatter oil, concept art, highly detailed, cinematic, 4k, hyperrealism painting, design matte painting, vanishing point, digital render, digital painting, perfect ratio, intricate,, unreal engine, greg rutkowski, loish, rhads, beeple, makoto shinkai and lois van baarle, ilya kuvshinov, rossdraws, tom bagshaw, alphonse mucha, global illumination, detailed and intricate environment
Negative prompt: out of frame