I like customizing characters in different ways and I've noticed some omissions for some combinations, especially with certain species choices. These aren't “Klingons don't have as many hairstyles.” There's a reason for that. The below are combinations that don't seem to have a reason or they do; it is listed and a revision is requested.
All data is brought to speed with the Foundry's character creation tab. You can argue that I'm being pedantic. I respect that these are terribly minor issues. My main grievance was with Trills not having makeup. I kind of got swept up from there. Any additions are welcomed.
These are great, but only category Humanoid gets both. Could we some expansion?
Species with only head type 01 (they use a category other than Humanoid i.e. Ridged, Dual Lobes, Smooth Nose, Smooth Nose – Ridged)
Alien (if Humanoid is not picked)
Females only. Some combinations that make sense don't appear.
Species missing Makeup 03
Liberated Borg Klingon
Benzite (though they receive many other patterns)
Saurian (though they receive many other patterns)
Species missing makeup that should probably have them
Trill (appears overruled by Host pattern)
Joined Trill (appears overruled by Host pattern)
Bolian (overruled by Stripes 01, 02, 03)
Species missing makeup for logical reasons
Caitian (can you image how hard it would be to wash out?)