Not bad. Looks pretty nifty.
As for leaderhead personalities, the technique I use in CotW and WoL - although not as sophisticated as what edgecrusher seems to be doing - is relatively simple and effective. Instead of copying just 1 leader's personality, I mesh together anywhere from 3-5 different leaders together (i.e. diplomatically he acts like Isbella, but he remembers things like Tokugawa, builds up his empire in a way similar to Gandhi, as a nonsensical example).
I haven't done extensive testing on it, but it appears to me that this technique does work. I've gotten some pretty interesting results with it (for example, somehow I apparently made my Hittite leader in WoL some expansion-crazy city builder who had taken over a third of a continent by the early Medieval era with about 12-15 cities, when the rest of us only had like 3 cities or something). It's a technique I suggest for anyone like me who doesn't understand the values in the LeaderheadInfos.xml
In so many works, thats kind of what I end up doing. I generally try and compare the new LH to an existing one, then alter the values accordingly. I think, much like creating the art for a LH, you need a base to work off of.
Over the coarse of doing this, I made an Excel file with all the leaders from Civ, wrote some formulas (Max, Min, most common, etc..), and did some research as to what the values actually effect.
For example, for Attila, I used Genghis as a base, Looking at Genghis, and seeing how he plays ingame, I adjust the values accordingly, i.e. increasing some aggressiveness values, lowered trading/diplomacy values, increase the "demand" tribute/adjusted values associated with tribute (memory, frequency). In the end you have a completly new leader, with totally unique personality traits, based off of how that leader was theoretically suppose to have behaved.
Deciding these values I use (obviously) internet searches, books i read, but more importantly, I take notes when i watch documenteries. Taking notes when they are on incase they are needed in the future.
As I type this there is a documentary about Cleopatra on talking about how, she was power hungery, seductive, and manipulative. Incidently, when I made her in the past, I gave her high Espionage values and "asking for stuff" values, in addition to a longer memory and war rands that react to the rejection of such demands.