A few thoughts:
- You say "Register" twice, very large - once on the button and once at the top of the registration box. What if we call it something other than "Register"? Register feels permanent, committal. How about something like "It's easy, Get started here," "Start here." Not sure what the perfect phrase is, something like that.
- The 100% free is a nice thought, but it's hard to see it over the image.
- I don't think I love that small "Are you a new user?" text either. Of course they are, otherwise they'd go straight to log-in.
- Next thing I would say is that your pitch proceeds down the page (steps, video, etc), which is fine, but there's no call to action down there, after you've sold me.
Hope this helps!