I would try to avoid directly copy-and-pasting your forms, and so obviously. If you had done this with a tree or two in a vast forest, it might not be so noticable...but one of the first things that I noticed were that your "ships" (?) are duplicates.
I'd also get rid of the lens flares. They're excessive, and while the rest of your picture has an overlying blue hue to it, the lens flares are slightly, slightly pink. Overall, I would just remove them.
It's also obvious you just copy and pasted a bunch of photographs together. It seems a bit random. What are all these things supposed to be? What is their function? They each have a different light source, as well, which makes things a bit confusing.
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