Viktor's Deathsworn skin looks amazing! There's enough glowing phantom-ish stuff going on to make it spooky, but not a distracting amount.
Zed though? I look at his pink claws and think he messed up his Wolverine cosplay (maybe Zed's color blind, IDK). The little swords on his back remind me of Shen too. Nothing feels spooky or scary, it just looks confusing and distracting.
Kat takes Zed's problems and cranks them up to 11. When I look at the color scheme, I'm pretty positive you're just trying to recycle either a Neon Strike Kat skin or an Arcade Kat skin, *maybe* a Death Blossom Kat skin.
So what's going on? Why does 2/3 of a new line look terrible while 1/3 looks amazing?