Wow, nice. I took a look in IrfanView (will try them in-game in D2 Vertigo in a minute, but I wanted to take a look first) and these look awesome. I like the "eyes" especially.
Since you were able to do this so fast I wonder why no one else has done it yet
. No matter.
Edit: I've tested in level 1 - 3 of Vertigo (because the Fervid 99s use Medium Hulk textures, and there are medium hulks on level 3). The new robot textures look great.