These are great images Em, its interesting to see the difference you can get from the same piece of artwork which shows a commercial aptitude as well as great artistic skill (ie one could be used as an old grunge poster and the other as an atmospheric representation in any magazine) and the bat eyebrows are one of those things that you think "why haven't I seen that before?" great stuff.
Perhaps add a wonderful rubber bat on wires in the background :)
regards
MAT