But, we all hear cases about it every day in which music, movies, pictures, etc. are used without the permission of the owner. In this case, did you obtain permission from the "owner" of the Avatar picture to reproduce it (i.e. copying the picture from a website and then use it as your own?). I'm not 100% sure if the rule only applies if you would have used the picture for your own monetary gains or if the rule applies regardless of whether or not any monetary gain is realized. To use it for your own personal use is one thing, but to use it on a website that the public can access might be something different.
No, I am not being 100% serious about this.