We used to make our own character images, but ever since we lost our renderer, that hasn't been quite as fun. Last time we dug up an image, we used Deviant Art. After saving it, we edited it some to make it fit better.

One annoyance in there is that images often are either of greatly varying quality, or unrealistic yet good quality. Typically female characters are basically dressed in "clothes" that share suspiciously much in common with lingerie, only that it appears to be designed not to have any clothes on top of it. At least that is what we noted when looking up star wars character images.