All you have to do is download fighter factory, and then open it, go to the sprites section and click on add new sprite, choose a portrait you downloaded or make one yourself or use one that another Igniz uses, and set the sprite number to 9000, 1 (group #, sprite #). Make sure you hit the "save .sff" button so it saved. I know the details I gave are vague, but just type it in youtube and just watch someone do it in like 10 seconds, and you'll see the process and how easy it is. If you don't have a portrait to use, give me a bit and I'll whip one up for you. You prefer full facials, or chest included also? Lol
Also, if you're talking about the really small portrait, and not the bigger one, it's the same process, just set the sprite to 9000, 0 instead of 9000, 1.