Hi Jack, or Up, or North for that matter. Maybe not shortening your name would be the best way to go... I'm new here too. Well, this account is. I've been on DA a while. I write prose, not poetry, though I've dabbled a little. But I can try and give you some critique when you get round to posting stuff. Alas I am not entirely certain about your questions. If you post something online there is always the possibility of someone stealing them and claiming them as your own sadly. I'm pretty sure copyright remains with the artist. When you submit art there's something at the bottom of the page called 'Creative Commons' where you can either allow or prohibit the use of your art for commercial or other purposes. So you might want to have a look at that. Anywho, hoped that helped.