well ....i just learned to render grass ....so , take it easy , m still learning But in general i think the logo is good .
When you are learning don't expect something to be perfect , actually , nothing is perfect
you should have seen my first version of rendered grass ....it wasn't that good . O and the grass doesn't have textures , my old version had , this one has advanced lighting and color effects , but currently i am trying to do my best to make it look natural .And was made by a tools used for character modeling ((people)) the modifier is called "Hair and Fur" it is used for hair , i used it for grass
EDIT CREATIVEGTA : lol , there is no such thing as a shiny lawn , i mean it looks real but not as real as the real thing .