I like the text you had before better. As for the image.. It will be hard for me to really make that brandable, as this image (minus the color) is already associated with Non-smoking area. Any chance of changing it up? heh
I like the concept, but I'm afraid this won't quite fit the theme. The text is to dark. Also spelled "habit"
Definitely liking this a lot. Can't really think of any feedback off the top of my head right now but I'll come back if I think of anything. Feel free to keep toying with it if you think you can make it better!
I definitely like the comedic value here. Not sure the font and coloration goes with the theme though.
Out of all these I definitely like the last one the most. I think there's a little to much going on in the others.