Dear Aglynx , I am interested to participate in your contest. #1 #2 and #3 are the initial proposal for you. Subsequent entries will follow. Feedback and suggestions will always welcome.
Tridoso, if you have time, could you also try another version of #6 with the letters colored with three horizontal stripes: the blue, green, and brown you used in #1? But leave the stem and leaf part of the "X" completely green.
Also, there should be a period after "Cost Effective" (I know I left it out by mistake in the proposal details).