It looks good Yossam. Just to me it looks strange because I don't have the experience of seeing that color earth in person. Even the photo looks fantasy like to me. I think it would be the same for a lot of natural phenomenon. THere are a lot of beautiful things and places that just look like paintings or are otherwise outside of peoples normal environment.
There have been a lot of images posted in open discussion of amazing things and places that if were reproduced in TG (even perfectly, and perfectly like a photo), people would say that it does not look right. But many people have said this before me. And I think because of the things I said above.
One thing that could help is just to go in and add a lot more detail. And while that may make it look more "real". It would still only look real to someone who has seen it and knows what it is. As I said, to me, even the photo looks fantastical. But I do like the color anyway.