Again, thanks for entering the contest!
I prefer
#28 out of what you sent. My first reaction (and the reaction of two other people) was that the graphic reminds them of the MS Windows logo! The each said immediately, "Oh, windows!"...
In terms of the overall layout, I am wondering if something more box shaped could happen.
I like the font style, but I don't like the emphasis on BM (that's bowel movement in English!). Maybe the Marshall could be emphasized in some way, while the lisa b part less emphasized. Maybe it's the the B that bothers me.
Regarding the graphic, it could work with four conversation bubbles, but I think it needs to have less color options and perhaps the shape of them need to change somewhat. Also, the way you have them it's like the conversation is in ring...it might be better if two are "talking" together and the other two are talking together. Meaning the part that hangs down would be facing each other. I'm not sure how clear I am. If you don't understand, let me know.
I am definitely leaning toward a white background so #29 an #30 are out. I prefer the of
#28 and #29 over the other font.
I am looking forward to seeing how you will move this to the next step.