Avatar rules?

What are the rules on avatar image?

I would like to use Steve Jobs advert/poster but will that be allowed?

https://images.app.goo.gl/2zRVhiFBRqBQAr8W9

https://images.app.goo.gl/v3z9hjBwXKafkphM9

https://images.app.goo.gl/B7e3YthrFbWtWWE77

Would this be a problem to anyone?