So, in a slightly different format from usual.
Lessons learned from battle number 1 (the ignominious defeat):
- 16" is further than you think. It's only 1 1/3 times the frontage of 12 cavalry in line abreast
- Do not park your general directly behind those light cavalry that just got charged. He will be next in line when they rout.
- Your dice still suck.
Lessons learned from battle number 2 (the close-fought victory)
- Read the rules before you start. Parthian shot is only available to cavalry in skirmish order.
- 8" is also further than you think: it's twice the frontage of a block of 6x3 legionaries.
- You probably don't need a general AND a senior officer in a 1500 point army. Paint some more Auxiliaries.
- Your dice really do still suck. [I think I managed a total of ONE hit from the 3 two-attack characters in combat over about 6 rounds.]
As Rob said, though - any battle you learn from isn't a complete disaster. And this is why we have practice games.