Wow! That's awesome Mal!
I agree with Vox, the words donate and kickstarter should be obvious. Other than that, I can't wait to see it hanging in the window of all my local game shops.
How will it look printed low Res on A4? I think it will look OK, thanks to the high contrast, but I'll show you after I print one, before I post it anywhere, if you like.
Or how about a simple version, for black n white printing. (virtually free then, but still getting your message out there)
Do you have some good black and white images for a fan made poster?