Poor.
It's a good idea, but you need to improve alot for this to get the credit it deserves.
> As it's a Newgrounds tutorial, make the layout look like newgrounds! Find out what fonts are used on the site, use them. Use the same colors, etc - make it look official.
> Get better graphics. Some of the ones you've used are really bad quality, look into getting some clear, good looking images.
> Add a selection of music, nobody likes listening to a something they might not like over and over.
[2/5]