Some more feedback. I think I'm going to like #15 a lot better in blue, possibly with yellow, but not in purple.
#49 is very friendly, but I'm leaning toward the designs that have the star representing people interacting or at least being more than just the star sitting there. #50 and #51 star is just too big without it having another purpose. The graphic inside the star looks like a sunrise, and I'm not sure how I'd explain what that means or why it is there.
I appreciate your attempt at the spark in #23 and #24 but unfortunately they've started to look more like a magic show to me.