So I went on last night doing a refsheet for the Naharis trio. I decided to crop all of the info out and leave them three there. I purposefully left a lot of little things and angles, eyebrow shapes and all in common. Have fun spotting the differences and similarities! (!?)
From left to right, Iros, Kendra and Varik. (Dude, you're the face of derp)
Iros and Varik are brothers: same parents so their palette and lines are quite similar, different proportions/locations and eyecolor.
Kendra has a different father... so there are different slight colorations too. I guess we all know the predominant mom-features. (creamish colors - green eyes are totally mom).
Maybe one day I'll include the parents (Since yes, they are also designed.)

Shouldn't they have different lastnames?
Well. I imagine Turians to be quite equal in terms of male-female statuses. I also imagine none takes the other one last names upon bonding - since they are also very strong in individuality. The children, however, would take on the eldest // highest ranking family name. Therefore, Naharis for them all three. (cause old family names take precedence)

Who knows who will the next set be! (!?!!?!!? cause that's so not important right?)