It didn't even occur to me to look at other Leder games for artwork! Doh!
That makes sense on picking a core element and thinking of how to put a twist on it. I'm still very new to the game so I'm often getting carried away with ideas without having the knowledge to see the flaws!
With yours though, like I said, it feels like it's got a real elegant simplicity, and that maybe play testing wouldn't call for huge changes so much as small, easy-to-fix balance tweaks.
Can't wait to have a look at everyone else's creations in detail. I heard about the Root Jam from listening to the old Woodland War Machine podcast and was really happy when I saw it being posted about.