Reminds me a little of Rahli, the new default track you made for GR as it has the same lowered mud wet layout but Forester is way better in every aspects.
The houses makes me think of how the life would be, as people may use kayaks or canoes when there's water, and little off-road vehicles when it's dried like there. I love the natural dam made with rocks, if it's a dam though, at the bottom right corner. I could imagine that people may use it at their convenience for many purposes. Textures of ground are well made and it's filled with nearly only nature objects and nature made layout, so lovely environment.
About the driving it's quite challenging because you have Hmap on each side that makes you lose some time and some little bumps that you have to take well for an optimal race. I tried to race with AI, could gain some places but quickly losed them because mainly of the curved Hmap that makes you jump or lose grip. The most difficult parts are the last corners that makes a chicane and the top right corner where there is the sign waiting for you to crush into, and you'll understand quickly why there's a pit stop just aside.
Maybe that's because of driving the Monstertruck and I don't have the habit, but will train on this new track to sharpen my skills.
Thanks for Forester, it ends up nicely your GR1 career if you decide to stop there. So see you in GR2 !
Right now I have the feeling that this might be my last track... Last track for GR1, that is. 
