The alien controls are based on a work by Steve LeMaster (http://obnoxiousnox.deviantart.com/art/Alien-control-panel-264724297), and used with permission.
The alien floor is based on Piotr Siedlecki's work (http://www.publicdomainpictures.net/view-image.php?image=40539&picture=alien-wires-texture), in the public domain.