Pathway
Make the pathway a bit more curvy
that will make it more good looking
Grass Detail
Well, look at sparks attachment, he made a great
grass looking area
River
Make the deep water more curvy, and also the dirt around it
see attachment
Bushes
Try not to add choptdown bushes in one place
Other
Try to add mushrooms, but be careful and dont
put them in places where they can block, cuase they can easily
annoy people.
You can also add thoose small rocks