These two themes are modifications of the Moblin icon theme (http://meego.com/devices/netbook) and the amazing Victory theme (http://gnome-look.org/content/show.php/?content=123936).
The Monoblin icon theme is a subset of the Moblin icon theme with the odd change so that it only appears for action icons, status icons and a few other common toolbar items. The result is a symbolic style for action icons, going with Gnome 2.28's more sparing use of colours and icons. That means beautifully consistent, unobtrusive toolbars that get out of your way, helping you focus on actual content.
For all other purposes (for example, application icons), the theme inherits from the ubuntu-mono-light theme, and this can be happily changed to just about anything. So, unlike many major icon themes, it doesn't try too hard; it is designed to blend seamlessly with your existing system.
The GTK+ theme I am attaching is based on the original Victory theme, with a few small changes. Victory is a really beautiful theme on its own, but I added back Murrine's simpler default look for expander widgets and I messed with tooltips, basically to bring it a little closer to stock Ubuntu.
I changed the menus in a somewhat unusual way, replacing divider lines with whitespace that actually divides things. I have a long ramble about design and philosophy on this topic, but I'll just leave it at this: that's an unusual, though very simple adjustment. If you have any feedback about it, I would love to know!
There are some more screenshots and readme files over here: