Wouldn't it be better to combine both versions into one model that has two attacks? i.e. "Attack" (melee) and "Attack Two Spell" (ranged). I always wondered why Blizzard made two separate models when it doesn't seem necessary.
Adding two more versions that use the red and blue skins would be nice.
You might also want to add a running (Walk Fast?) animation from the TFT Beta model (attached below).