Cool, what contest? ^^ The guy has a very clear and crisp lineart while the scenery is kinda blury, except for the horizon. Maybe you want it like that (you're the artist, you decide ^^) but I would probably sharpen the grass and stuff. And maybe add some mountains/trees or something to show that the horizon isn't completely flat. (He doesn't have to be sitting agaisnt the tree there. ^^) Nice job. ^^