You may have a point. I couldnt deny that they look a little mestizo, but they definately look more mediterranean. Greek, Roman, Spanish, Pheonecian, whathave you. Also, they definately lack the indigenous American appearance that would aid your mestizo theory.
Actually upon looking at them again. I would say there is very little mestizo in them. Most mexicans I know dont look anything like that, and I know a lot of mexicans (granted, there are other mestizos, but). I do however know a few greeks that could easily resemble them.
Look at the eyes(Most revealing), darker skin tones, and some of the facial features. Give preset #2 a sombrero...
Somewhat related, did anyone notice the President of the United states in the Altmer presets. :rolleyes::facepalm:
Edit:
Orcs: http://www.google.com/imgres?q=orc+skyrim&um=1&hl=en&safe=off&client=firefox&rls=com.yahoo:en-US:official&biw=1680&bih=768&tbm=isch&tbnid=L7PF_P-qsfSlEM:&imgrefurl=http://www.gamepur.com/news/5051-bethesda-unveils-elder-scrolls-v-skyrim-character-creation-examples.html&docid=J3_obMx-Ok44IM&w=588&h=641&ei=qbxyTtGeCcPk0QHQ1oXjCQ&zoom=1&iact=hc&vpx=173&vpy=414&dur=494&hovh=234&hovw=215&tx=145&ty=164&page=1&tbnh=131&tbnw=120&start=0&ndsp=32&ved=1t:429,r:16,s:0
Aboriginal: http://www.google.com/imgres?q=aboriginals&um=1&hl=en&safe=off&client=firefox&sa=N&rls=com.yahoo:en-US:official&biw=1680&bih=768&tbm=isch&tbnid=pFvsCTsDRFQ2BM:&imgrefurl=http://www.bri.net.au/aad.html&docid=qwiefcYr3Lwu4M&w=334&h=360&ei=XbxyTpD4NYn40gGztqDiCQ&zoom=1&iact=hc&vpx=1173&vpy=162&dur=1482&hovh=233&hovw=216&tx=113&ty=158&page=1&tbnh=126&tbnw=113&start=0&ndsp=34&ved=1t:429,r:6,s:0