Altmer should generally be taller than most other races, and their skin should have a golden tint. It would be great if many of them had the proud and snobbish attitude from Morrowind. Their faces should be a bit gaunt, and the other elven faces as well.
Bosmer should be short, and less silly than in Morrowind or Oblivion. I like OP's idea about goat eyes, but the black eyes from Morrowind would be fine as well. They need to look more unique.
Dunmer should be pretty much the same style they were in Morrowind. I'd like them to be a bit harsh, like in Morrowind. I don't like the idea about sharp teeth. The way dunmer differ from other elves in appearance is their skin color and their red eyes, and in some cases their face tattoos.
Orsimer... or Orcs, should not look like the pigs they were in Oblivion. I'd prefer something like in http://fc05.deviantart.net/fs50/i/2009/337/9/8/Half_orc_portrait_by_LolloBoloz.jpg Their skin should also be a little darker. I don't like OP's idea of horns.
Argonians could look like a mix of the creatures in these two pictures (http://www.wizards.com/dnd/images/rodragon_gallery/94118.jpg, http://fc05.deviantart.net/fs44/f/2009/145/e/6/Dragonborn_fighter_by_Lileth.jpg)
Also, I don't see why female argonians shouldn't have boobs, like any other of the races. It's not like Tamriel is the real world, these are magical creatures, their origin is the Hist and that's a [censored] tree. :bonk: Do we even have any lore telling how the Argonian reproduction system works?
Khajiit... not much to add except for these (http://fc07.deviantart.net/fs70/i/2010/286/9/4/weretiger_by_koutanagamori-d30nyog.jpg, http://fc04.deviantart.net/fs71/i/2010/312/a/7/wereleopard_by_koutanagamori-d32f28a.jpg). These are perfect khajiit designs.
There are also several other khajiit breeds that would be cool to have in addition to these, like the Ohmes-raht... they look like a mix of elf and cat.
Bretons could maybe look a tiny little bit elven in their facial structure, but not really very much different from imperials.
Imperials are... well, they are your standard white human race. Would be great if they showed influences from roman culture, like in Morrowind... it would make them more exciting.
Redguards should look like normal black people.
Nords should look like imperials, but generally larger than the other man races. Some of them could also use face paint, like in Morrowind.