Britains... In... Space!

 Sylvain Amacher’s (captainsmog) built this neat British steampunk Mars base thing. This is a pretty detailed creation, with the support struts and the decorative things on the front that don't appear to serve a practical purpose. I love steampunk, and this is a steampunk set if I've ever seen one. And a cool one at that.

The Wonderful Steam NXT

 Lego steampunk has some really cool entries, this, unfortunately, is not one of them.
 The concept and the design of this NXT vehicle, built by Matthias Scholz, are all great, and the Rotacaster® work really well. I just don't see this as steampunk. It looks more like a machine Tigger built in a Pooh Bear cartoon once. But it is still all-in-all a cool creation.