And holy hell, the screenshot looks like it could have been Razor-qt.
I'm really glad we have an actively developped file manager and image viewer in Qt as those were two apps that were seriously missing.
What is the desktop+file widget on the screenshot? Is it another lxde app, or pcmanfm taking care of it?
Have you had a look at the code from razor-panel and razor-desktop?
I strongly feel the panel would be better off merged with its razor counterpart. We've actually had a fair bit of work+cleanup recently on it. Let me know what you think.