The Defenders base still looks a little spammy, and you could add a tiny bit of more detail the the water and base.
And finally you should use the duplicator less. You used it on all the helicopters (or it looks like that)
And finally finally add texture to the sides or a least color them and make the sand more textured. It is, but not enough, it should be all around (like next to the base) not just when you get on the beach.
By the way if you make it THAT BIG you should add more stuff such as rocks and crap like Menen said.And I think that is why it looks spammy still.
otherwise good 8/10.
