i'd like to see this with a dark'ish blue background :/

Spooky! I love the monochrome approach. Other reviewers have said it already but you're great and conveying a sense of atmosphere with one colored light source. That silhouette is so discernible. Excellent job with this! Thank you for sharing with us.

I love how you depict anything that glows or emits light, for any of your art.

Killer work :D