Half-Life 2 Easter Egg - Alyx Made a Picture!

This is a simple egg, but is quite humorous. In the mission "red letter day" when you reach Dr. Kliener's lab, go to the wall on the right with all the papers and schematics, and if you inspect it closly, you should see a little crudely drawn picture of Dr. Kliener, with the words "Uncle Kliener" on the top. Signed by Alyx. I think this really sells how young Alyx is.