Interesting. Are you planning on developing this further? It looks like a collection of doorknobs at the moment, mainly because it lacks any scale cues - how big is it? The image title suggests size but your textures are too clean and there is insufficient tiny details to make it look big. Adding some trees or birds or perhaps a human scale aircraft may help. Also try a POV that is lower, so your knobs tower over the scene. You have a good start here - keep working it.

I like what you've started here. I agree with WZRD on the scale issues. I think the strong poing which I appreciate most at the moment is the textrure map you've used on the ground. If you played with your own bump maps a bit I think it would really bring that out some more. You've got a good start on the water in the pool. I'm absolutely lousy with water but there are a few users here who could really help you out w/that. Generally I think a little less turbulence and more reflection of your towers would look good. Then again, that might kill the mood you are going for. Thanks for the post, looking forward to seeing your next image!