The undead_alyx.zip file you have requested: Skins / Half-Life 2 Undead Alyx Player Skin - 894.32kb is not available. Perhaps try browsing all files for the game Half-Life 2 and upload any files you want to share or are missing. This is the only information we could locate:
Very nice skin. It's an undead person with a green skin. Looks very nice indeed, especially with that clothing.