This Windows 7 theme uses RSS feed to get images for wallpaper. We have posted one Microsoft Official Windows 7 theme which used RSS feed to update the wallpaper - Bing Windows 7 theme that updates automatically through an RSS feed.
I used flicker RSS feed for Flowers and Lotus, these images are uploaded by Bahman Farzad. For the theme Krishna I have used a collection of images added to my Picassa (from Santa Banta, dadhich, India vilas etc)
Download the theme and unzip it
1. Download Flowers Windows 7 theme (RSS based)
2. Download Lotus Windows 7 theme (RSS based)
Open it by double clicking, it will open a window like below
Click Download attachments (this will save the wallpapers to your hard disc).
If you also would like to create this kind of RSS based Windows 7 themes, here is How to create your own RSS based windows 7 themes on mintywhite.com