#54 (+ other 2) are our favorites. Color scheme is better in #54. It does look a bit more complex than it should. Could you experiment with simplifying the "E". Perhaps while also making the whole thing a bit more subtle, maybe less broken pieces and lines? Also try getting the C into the design (but keep the design separate from just "e" one). Another thing that comes to mind is trying simpler fonts for the "earthcape" part. Perhaps, going into stylizing the shapes of the letters into very simple ones.
Lets try using icon from #154 and font from #144. For the color scheme: try slightly darker green and paler orange. The logo: could you move the "slash" a bit to the right and tilt it a bit counter clockwise?
for #187 we need a version with color scheme of #182 (green is a bit off) same for #144 (at least for green parts) font is ok in #144 but for #187 it should be replaced with the font from #182