the only way to become better is to be worse. if you can pick up useful advice along the way, that can help you get there as well.
there is absolutely nothing wrong with posting any work of art on this board so long as it does not break any rules or terms of this forum. nobody has any more right than anyone else to this privilege.
my two cents at least. my third cent is that it's never okay to be a jerk and you should always avoid being a jerk regardless of the circumstances