I am having quite a good time with Bodhi/Moksha - I have probably done 6 or 8 fresh installs just to learn and get comfortable with with Mokha. And I played with themes and icons in countless iterations.
First I would like to recommend Roger's "Bodhi 5.1 - The Complete Guide for Beginners" lots of good tips and explanations - beginner or not actually.
Anyway I have been able to install any number of theme oriented desktops and get the tweaks down. Although I have not ever been able to load any themes from outside sources for whatever reason - icons are not a problem and can be loaded rather easily. I would like to have different themes and theme icons on my virtual desktops but haven't been able to figure that one out yet and doubt that is possible.
Here is my Windows7ish desktop - I actually use the MokshaRadiance theme because the shelf is more Windows7 like. The icons and Wallpaper are easy to get online. B00merang makes a great Windows7 theme but again - not to beat a dead horse - won't load with Moksha. But the "look" is all I am really after so I can live with my Radiance7 desktop.
I also created a desktop with a more modern look that I am quite pleased with as well.