There aren’t enough light theme setups out there, and yours looks very clean and well thought out. I especially like that the shadows of the window decorations are better visible on the light theme, that gives it a way better spacial look than on dark ones.
The only thing I would change personally, if I would copy it, is the right area of the top bar, that one looks a bit too crowded for me compared to the rest of the more minimalist setup.
I would drag the widgets, except the tray, onto the desktop or so.
Please also don’t forget to link your themes (and other stuff) used or customized in the post, for others to recreate :)