This is a modified version of Clearlooks Revamp (http://gnome-look.org/content/show.php/Clearlooks+Revamp?content=125091), created by Zentili. (99,99% of the credits should go to him... only a little bit for me... ok 100% to him :P)
As with the original, it's 100% made with murrine engine (git version needed)
Changes between original and mod:
-Deleted purple/magenta color for selections, now uses the same blue for everything.
-Speaking about blue: is a little bit darker.
-Deleted font size restriction.
-Style in menu-items, progressbars, and in back/forward nautilus' buttons reworked.
-Menu offset increased to make menu childs overlap the parent menus.
-Deleted custom style in Eye of Gnome.
-Added separation lines between menubar and toolbar.
All changs are visible in the screenshot (except the no-special Eye of Gnome style).
pd: No nautilus elementary version. This theme is a modification of the classic nautilus version of the original theme from Zentili, so no nautilus elementary tested in any way.
(Sorry for all possible typos and/or gramatical mistakes.)