Custom Donkey Kong Poster + Printing Q's

[8-bit Legend]

Ok I have two things here....

For one thing I made a fantastic NES Donkey Kong Poster! And you can see it here.....

http://www.mediafire.com/?b1tvmyloxjjtqml

My question is how I should print it? I plan on printing it online using http://www.fullsizeposters.com (unless someone highly recommends a different site). Also, I'm worried about blurriness. It's a 6491 x 4745 pixel .jpg image and I plan on printing it on 20 inch by 27.32 inch photo paper. Do I have anything to worry about? Is it gonna turn out blurry? Any input would be extremely helpful!

[Hobie-wan]

That's 237 odd pixels per inch so it shouldn't get too jaggy.

[GSZX1337]

Hate to do this, but your poster image (while good) does appear to have compression artifacts. You might want to draw over it. (Perhaps with Inkscape?)

EDIT: I mention this because your print might not turn out very well because of these artifacts.

[Hobie-wan]

Duh, I forgot to mention that I can't actually look at the picture because I denied cookies to Mediafire so it won't let me see it. I was simply commenting on the DPI versus the size you wanted to print it so obviously I can't comment on any compression like GSZX1337 did.