Right, so I've been watching one of my roommates play Mass Effect 2 occasionally. In ME2 there is a race of aliens called the 'Quarians'. These aliens constantly wear special suits to protect themselves from bacteria and disease- their immune systems are incredibly weak. Since you never see a Quarian without their suit, at least, as far as I know, in either of the ME games, it caused me to wonder what they looked like. This, in turn, caused me to speculate based on the clues given by their suits. The speculation, of course, led to my drawing this.

This is what I think a Quarian might look like without his suit on.