#7: This is the kind of feel I'm looking for. Great design. The "g" in the letterform is a little too cartoon-ey, so would be good to tone that letter down a bit (I love the "m"). Also, I suspect you looked at my website for the colors. I'm actually not very happy with the green tone on my site today (too light). Would not be opposed to alternate color ideas... your call.
#15: The "g" is much more identifiable, which is great. However, I believe it might look too feminine? (Reminds me of the "L" on Laverne's sweaters in "Laverne & Shirley!" Wonder if you could go back to an upper-case "G," and work on the shape? Also, in comparing with #7, I actually prefer the green color over this one (sorry so picky!).
I like the new approach used in #30, #28, and #29. The "m" and the "g" are much more identifiable, and the letterform speaks to the simplicity of my approach. Much improved!