Therefore, I'd rather use photoshop to add tree elements to my presentation. But maybe you have found a good sketchup vray tree model? Please, let me know, it would be really helpful.
For this tutorial, the rendering result is still raw, without any photoshop touch up. And the street lamp is still horribly fake. But for your own scene you can find a better one.
In the video, I'm also going to explain a little bit about vray displacement to help me created a more realistic grass and water. You can also use this displacement for creating a rug, cushion, etc. But one thing you have to remember, if you use a lot of displacement, your rendering time will be a lot longer.
Here is the tutorial as you can see on YouTube