Download File link contains half of this leaderhead pack, download the second half here: 
http://www.civfanatics.net/uploads8/alien02.zip
The camera moves "zoom in/out", I think if the leaderheads of Civilization 4 did the same, more emotions would be added
I have to post this suggestion sin Civ4 topic suggestions.
Icon
Attack
Death
Fortify
Default
Victory
Run
BTW, I did a unit that could be used like Ripley (the main character of the movie), the link of this unit is http://forums.civfanatics.com/showthread.php?p=2199944#post2199944
http://www.civfanatics.net/uploads8/alien02.zip
The camera moves "zoom in/out", I think if the leaderheads of Civilization 4 did the same, more emotions would be added
I have to post this suggestion sin Civ4 topic suggestions.
Icon
Attack
Death
Fortify
Default
Victory
Run
BTW, I did a unit that could be used like Ripley (the main character of the movie), the link of this unit is http://forums.civfanatics.com/showthread.php?p=2199944#post2199944