These are my more developed backgrounds for the first scene in my film. I am happy with these, they are unified in their colour now and more naturalistic than the colour comps. I wanted it slightly alien but warm because of the sunset and I think this has worked.
I wanted the landscape to feel slightly inhospitable and baron so I researched a lot of old abandoned futuristic/retro futurism monuments and sculptures, ruins under the sea (lol not Atlantis) to try and get ideas for the shapes of the landscape.
These were all made in Photoshop at HDTV 25 resolution of 1920 x 1080, there is a slight sand texture on the beach and I haven't included the ocean yet as I am planning to create this in After Effects.