I think if you're going to include real world ethnicitites with elves, logically they should be tied to specific subraces. And to cloud the water a bit, High Elves cover Sun, Moon and Star Elves, whilst Wood Elves cover Wood Elves and Wild/Green Elves, Drow are drow, the seldarine drow (if basing them on the description found in the follow on series from war of the spider queen should indeed be distinct too.
High Elves should be more delicate features, more slender based on Moon and Star Elves, Sun Elves can reasonably fall into that category too. Skin colours for these would range from very pale to "bronzed". Hair colours would be pretty diverse with Blue being a thing for moon elves, Sun Elves tend toward blond, red or brown hair. Star Elves share most of their colouration with Moon Elves iirc.
Wood Elves should be a bit stockier and generally a bit more rugged looking, their skin tones would tend toward ruddier tones or browns, their hair toward darker colours as well. Eyes are still reasonably varied.
Drow should be more delicate looking than Wood Elves, but probably have a hardness to them that most High Elves do not. Their skin tones are supposed to purplish black/blueish black/brownish black/grey-blacks. their eyes are more limited in colour with almost all of them having red eyes, some rare few have unusual colours like violet or amber, but its rare, the red eyes are part of the curse Corellon put on them to make them into drow. Their hair would be varied shades of white naturally, but i guess they could dye it as dye would take well to naturally white hair.
Seldarine Drow (which should really be "Dark Elves" would be similar in colouration to Wild Elves, tending toward brown skin and darker hair, but physically resumble Drow in terms of build.
