I have spent a couple of hours this morning playing in Photoshop, and this is my best effort:
A Poison Green Fern Frond.
I would not have been able to even begin without WOLL's instructions.
I'm thinkin' maybe a trip to the other side of the world, for personal instruction, is in order.
Click here and follow the respondents' links to see others' far better efforts at digital photo SFX.