I'd love to try it in a different setting, with more light and perhaps even a colored filter, but didn't really have those options at the time. And personally, I like the muted colors. It gives it a certain feeling of solitude and quiet. Glad you still like it.
I've seen it done with a dual-color filter. It looked pretty damn rad. I'd like to try that. Of course, a red filter would be a natural choice to try. Maybe someday I'll get around to experimenting further.