@$imon
If you compared the scale the grass would be something like 20 to even 50 cm tall, so in fact is quite high
But that challenge subject was 'Diorama', so I'm quite happy that I managed to achieve minature effect.
After I planted grass I came to idea of fakeing tilt-shift effect (
http://vimeo.com/10792824 ) to make the house LESS realistic. One thing is wrong here that background should be out of focus instead of adding an ammount of fog. Adding character modelled by me would totally destroy it as I can't really model realistic characters or creatures. I can say that I planned to add a well at tthe side of the house.
Thank you for the comment.