Hi David.
The idea is a thing of personal taste, for me it is interesting. As a personal opinion I think that putting the folder on the top left, and the color, just get too much attention. Maybe I would prefer a more conventional approach and locate the icon at the bottom right of main icon and have a less flaming color. But it will crash with the shadow icon, maybe bottom right... not sure.
But I like the idea to experiment different alternatives and options.
Regards