Environment concept

I've been working on a few concept for the outdoor environment of my 3D level. After I decided which one was the best (I had a bit of feedback from my mates and tutor), I made the final concept art. I will have to make the model in Unity now, using models and the terrain Unity assets. A few concept are on my notebook, so I won't post them. For the final art I used picture I've found in google, made a collage, used a few filters and re-coloured some parts, add effects and stuff.