#19 - We like that the "Spill""Con" are two different tones and that with the smaller letters the "spill" and "con both really pop out; the "solutions" starting underneath & after the "p" in spillcon; and the "S" in the emblem. We would like to be able to see the "s" in the emblem better though.
#20 We like the concept of using the oil drop and water drop but we feel this looks too similar to a "ying & yang" look.
We like the negative space to demonstrate the "S" maybe it would help if the top of the blue drop and the bottom of the black drop were slightly pulled towards the center resulting in the negative space lining up with the top and bottom of the square shape.
#81 this is much closer to what we were looking for. We are interested in seeing the "S" in the emblem be the same as the "S" in SpillCon. Also, I have done a very rough photoshop edit to demonstrate what I meant about the negative space for the emblem. (please note the 's' in this rough draft is too thick in our opinion.)