Hmm, it looks good but I think there's a little too much red sand, try mixing it up with normal sand, clay, etc. Also, make it look more natural ... maybe some custom dead trees? And like Kuzey stressed, TERRAFORM. I see that you tried to put in some effort with terraforming in the corner, looks good but with one hill and one piece of terraform it looks very unatural and imbalanced. My advice? More terraforming and maybe some stone ? Looks pretty goood you worked hard :)
PS: I like your train sign.