hm, I do not like the colours, nor the mountains, okay, thats subjektiv, but interesting for me is the line in the sand, and the sand gets darker towards the water, that gives a wet impression, only the shore doesent fit to the coastline

Nice work - pretty good 3d clouds! Ok, when I understood you correctly you want suggestions for improvement, right? Ok, the title of this image is 'Pollution' so I will not nag about the colors ;-) When I look at the surface I think you've read Dotthy's beach tutorial, right? If not, do it - it's great! I think bumpiness and distribution of beach surface layers is pretty good but try making the wet sand a bit darker. Also I would give the mountains an other surface than the sand. Cause your terrain has not much detail I would give the mountain layer(s) more bump - then try raising the setting for mimic terrain. Basic rule: The more layers (and child layers), the better the look! Concerning the shore and the coastline: as far as I know, this works better on really low slopes, I think yours is to high. And just play with the shore settings - maybe raise the peak spacing in advanced settings. Keep it up - you're on the right track!

Nice pov and mood - try a brighter beach scene now!