The rocks have been colored and a first pass with scenery/vegetation has been applied. I'll be adding more trees. I've also added some gravel for the river bed. Next up deciding if I'll pour some Envirotex or just brush on gloss medium - I'm leaning towards pouring.
In order for this scene to blend in further, I think some rock work needs to be made towards the background, to tie in more naturally. As they are now, the ridge seems to be on its own. Just adding a small bit of rock at the end of the freight house helped visually, so a small section at the background could help some more.