While I haven't done anything official yet, I have done a lot of Eberron illustrations (mostly Warforged), both for my own amusement and for private commissions. I thought it might be cool to collect them all in one place.
As long as people are just using them in their own games and not reposting them anywhere, I have no problem with them being borrowed for visual reference.
Warforged Master Inquisitive
Changeling Rogue and Sorcerer
Warforged Sorcerer (cobbled together from pieces of other Warforged bodies)