Very interesting - I like the use of a tree, rather than just leaves - but I do think a tree perhaps with a more ornate strong trunk and less detail in the leaves. Perhaps some roots too. I like how this approaches being a real emblem. Please do check out the images I attached to the contest if you have not. Appreciate your entry. Thanks!
I like that tree better, with the roots. I think it could be simplified further. I like that it fits better within the circle now. I would prefer the text to remain horizontal (not curved around the circle). I prefer the flat color over the textured / worn-look ones. Thanks for the extra options!
For #23 I'd be interested to see simpler leaves perhaps enclosing slightly further around a smaller shield. Here's a shield I like http://i.imgur.com/Nut964x.png