#1 the clean lines and color draw in my attention with the simplicity. Also, #2 it is good to see the S2S standing as a logo along with the words in the text below...what about shifting the colors a bit in #2? The yellow on white gets lost, whereas the white 2 (in the #1 design) stands out more. The elements of the leaf shape were nice in the first entries...perhaps work those back in somehow?