My first impression was that it was a white human skeleton. Then I saw the demon at the centre. It can also all just be smoke... There is a face at the right side he seems to be laughing and having a fun time. The centre demon seems to scream and be a little more desperate. The left face seems to be more calm and accept reality for what it is. Also looks like he has a bit lower intelligence. But also he seems to be enjoying the ride a lot. The right face looks like he is on something, maybe even something illegal. And he has a very big nose.