Awesome work... Is this what the one on the original looked like or did you come up with just putting stuff in the greeble?
I've always had a hard time trying to figure out were I should put things like you have in your greeble. I think it's because I'm used to working on engines and I'm always trying to place things in a way that it looks functional, but then I think I'm spending way too much time on that.
I suppose I should just start looking at pictures from oil factories or jet engines... That will probably be a better Idea.