After a bit of thought and discussion with my wife, we both think that although the design looks very professional, it's a little too serious. We both like the font and highlighted M and K.
#134 is ok, but looks very similar to others. I like #102 because it was different then everyone else. The white/transparent background is necessary, as the logo will go on a website and as a watermark on images. There should be red somewhere in the logo, but it does not have to be predominant. Something different. :)