Futuristic war turret/robot

I’ve made this today:

And I’m looking forward to improove it! Any suggestions? What do you think about the progress so far?
Rendered in cycles it took about 5 minutes to render them all.

Looking good. Are you going to animate it?

Thanks! I’ve never done a model like this so it would be really great to animate it but I’m not sure. Inside the model each part isn’t connected to anything. It’s easy to model, fast and looking good!