I'm not sure, but maybe one reason why not too many voted on the challenge is that everyone's votes are publicly displayed. Maybe some folks are afraid to hurt a friend's feelings and so don't vote? Just a guess. I didn't vote mainly because I wanted to wait till all the images were submitted and then got tied up at night with a couple of MAJOR shrimp runs down at the bridge and before I knew it, April was history! "Emotions" sounds like a cool idea for themes. Major holidays work well, too, IMO. Or, how about "Colors" as themes. Like have the theme be "purple" or "red" or one of those colors like "fuschia" that guys like me would have to google to find out just exactly what that color was - lol. You could use other colors than the theme as long as the dominant color was the one selected for the theme? Or themes like kaleidoscoped images or ones that are mostly geometric shapes? Just some ideas...