My approach to these is to paint four groups of 12, each with the same basic tunic colour, but with varying levels of trim. These have a base of blue (bet you didn't spot that, did you?), the next batch in line will have red, with grey and off white to come.
Colour choices are based on various tomb paintings that have survived from Southern Italy. Try a Google Image search for "paestum tomb" and you'll get the idea.
I've done the flesh tones on these slightly differently to some previous figures, with less contrast. Not sure I'm happy and would be interested in other opinions.
Shields are mostly finished and just need adding to the figures. Will try and get some photos of them up tomorrow.