I like to call these "Sugegasa-type" mecha. They're heavily based on the mecha created by the Brickshelf user known as "sugegasa".

Her work can be found here:
http://www.brickshelf.com/cgi-bin/gallery.cgi?m=sugegasa

Her mecha desings can be found here:
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=87139

Contact me at: archammer2@yahoo.com