Nice effort mate, but go into Photoshop, open the render, remove the black background so you get those white and grey checks in the background, then save it as a .PNG, when the pop-up opens, check 'Interlaced'. Now you have a transparent render. Nice one matey, keep at it.
good for a first render. try using the pen tool with curves, i makes it look less square. there are many other ways, i suggest you go to pixel2life.com and chek it out!