I'm not an artist, so naturally I'm struggling with stuff. What I don't get is styling, like should the trees just be shaded or textured, and what kinda texture fits well? Same with the background, how much detail should there be, all that stuff drives me nuts. Then there's color theory, more of a nightmare but I'm sorta getting it. This here is for a game,  not a single piece. One-click for actual size.