My First map with ArcGIS

This is one of the first few maps I made using ArcGIS about 2yrs ago.
A map to represent the land value by census tract in Brazos county,TX.
Very amateurish .....my professor would not be proud of this  but I was proud of my effort.
I rate myself low on this one...what do you think?
Can you deduce the message this map was trying to convey?