You know, I really enjoy artwork of Slenderman like this. It's a monster being who he truly is. And I don't say I hate people who make cute art of this guy, but we need more of this, and less porn. I'm kinda getting tired of the amount of BS artwork of well...you know. Keep up the good work
I personally say that I like to keep the image of Slenderman ambiguous (because canonically, we never really see him doing much save for insanity and paranoia), but I have no problem with him being some murderous entity.
Another interpretation I like, that I've seen through an acquaintance, is that he was placed upon earth but otherworldy gods, and he just 'erased' people from existence. As in you're physically and mentally erased from the world and your existence is placed upon the nothingness of the outer realms. Mostly based upon the canon that people whom he came into contact- those who weren't his proxies- with sometimes just disappeared without a trace.