@halil23: Wow, that image is pure cherry picking... If you search around for Ninja Gaiden 2 screenshots you'll see it's not that simple. Even if it was like that, it could be a simple change in art style between the two games.
I also like it how they focused on the character and ignored scenarios and enemies. Not that I expected more from a fan made graphical comparison.
(right click + view image for full resolution)
Look at the costume and lighting in this NG2 screenshot, totally different from that "comparison" you quoted.
My Mario Kart Wii friend code: 2707-1866-0957