Wow, good modular design. But Iīm not sure it would work in real-life, because there isnīt anything supporting the top module. Besides that, itīs just brilliant.
This is a nice start, I like the modern design. My suggestion would be to turn the big green plate to SNOT, like you did the water on penguins chilling. It's always better for architecture to have a studless surfaces. However good job!