You don't have to wait for a possible software update to put custom faces on your Apple Watch... if you're willing to throw caution to the wind, anyway. Developer Hamza Sood has written code that lets you load the watch face you want, such as a silly animation with variable colors. It's crude (you're modifying a hard-coded list of supported faces), and will most definitely void your warranty while you're using it. However, this might scratch the personalization itch if Watch OS 2's Photo face doesn't go far enough.

http://www.engadget.com/2015/08/19/c...tch-face-hack/