I don't get what the big mystery about Tali's face is all about, I mean you can see her eyes, nose cheeks and forehead through the visor and she looks basically Human/Asari-oid, just very slender, shortish creatures with knees that bend the other way and milky white, glow in the dark eyes. So I'm going with pointy eared, purple skinned space elves with swept back porcupine hair and slightly disturbing centauress legs!
Yes, the real secret of the Quarians is that they escaped from one of those middle-earth/hyrule/warhammer type planets where they used to all live in tree castles while building hordes of ethically inquisitive killer robots!
On a more practical note, you have to wonder how generations spent living in those suits has affected not just their immune system, but their senses too. Sight, hearing, touch, taste, smell, it's all filtered though the suit, though I suppose being trapped in a suit all the time they probably get more smell than they can deal with.
Yes, the real secret of the Quarians is that they escaped from one of those middle-earth/hyrule/warhammer type planets where they used to all live in tree castles while building hordes of ethically inquisitive killer robots!

On a more practical note, you have to wonder how generations spent living in those suits has affected not just their immune system, but their senses too. Sight, hearing, touch, taste, smell, it's all filtered though the suit, though I suppose being trapped in a suit all the time they probably get more smell than they can deal with.