It appears that #69 is the favorite.
I have some final revision requests though:
Can you add a Yield sign to balance out the red and yellow signs?
Yield sign example:
http://us.123rf.com/400wm/400/400/carlosphotos/carlosphotos0610/carlosphotos061000011/566772-yield-sign-with-clouds-in-the-background.jpgAlso if you could vary the order of the signs from left to right, but would help us choose the final design as well.
Thanks