You are really coming into a flow here. Like them all.
As a photo project, the sheer number and variety of signs in NYC would put me in a quandary - so many to shoot! I like the variety in scale and type you've chosen. How does a sign like the top one get subjected to so much abuse?
I like these signs, it's always nice to come back later and look at them again. Some are still there, some are gone... I remember gathering the alphabet through street signs to help a friend in her assignment (she was allowed to seek help... :-)