As I experimented with brushes ect, I had a little help making changes to the clouds and refining the tree's. After doing this I can only now think to change the water, make it more realistic as well as the ground, looking up pictures and reference images to help me along the way.
In my personal opinion water is very difficult to even try and create, making a waterfall was a lot easier with a reference image, so making the water itself should be just as easy, right? Well not exactly... Trying to make the water is very difficult not knowing where to start. After having a small idea to restart the water maybe I could just try it out first on a blank page. As then I could probably copy the image almost exactly. Therefore making it easier to draw the water myself. As I could also change the underground a little. It would help to create the underground by making a small layer after the grass, darker than the rest.
