The construction worker and Fireman come in two shades of flesh colors. The darker ones are referred to as African Americans (AA).
Variations with the Policewoman from EH series. The badge on hat is different and I'm seeing a few differences with the lips. Many are a fatter lip color while some are a thinner lip color.
Variations I found on the K-9 from the EH series. Note the difference in head colors. One is an olive tan while the other one is tan. Also note the difference in the space between the tan head features.