Hey, thats pretty damn detailed. The grass is a bit to detailed actually, when its zoomed up it looks great but in original size its a bit to strong. Everything is really nice, the beach-water effect is nicely done and i guessed you just used some kind of brush tool or fade in tool or such to make that effect, until i zoomed in.
Only thing i dislike is the windows and walls, they look a bit poor compared to the rest.
What type of game style is it? .. Futuristic or Medieval