Welcome to RetouchPRO,
shayalon.
Like Swampy said, you've corrected the levels but the image has ended up a tad to dark.
I'm not sure how you fixed the streaks in the grass, but I'm guessing you used the patch tool (<J>) in CS2. If so, just remember that it isn't perfect and often you have to apply it again. I'm saying this because it seems that some sharp artifacts (noise) got left behind.
The quickest way to fix a background area is to just crop it out. If this was an important historical image then you couldn't do that - but here the background doesn't seem (to me) to have anything interesting. It does, however, contain many distractions. Cropping in on the boy avoids the trouble and makes for a better final image.
I also chose to do a slight blur on the grass, thus keeping the attention on the young lad.
Rô
(Photoshop. Bet this would look nice in colours -

)