Some Cassiopeia skin ideas
Skin Idea 1 - Pool Pary Cass Snake portion could be like an eel, or some purple colored tail like dragonite. A lifesaver ring around that separates her human and snake form. Stick a shell bra on there, and viola - pool party cass. With sunglasses and a hat.
Q - sorta like a nami q look. Bubble, then it splats. W - could be light water thats boiling. E - maybe like shark teeth? R - takes off her sunglasses AND BAAAM. SUNBURNS EVERYONE.
Skin idea 2 - Winter Wonder Cass
Snake portion could be a grey color, but with snowflakes and wintery lines on it. How do i describe it? Think Karma. Her legs light up when she ults. Think that on a snake. Human form of her has a white coat on. But not like a coat coat. One of those coats that has holes all over it on purpose. ice sickles as earrings, and a ice crown as a hat sorta thing.
Q - cold winds form together to make a mini blizzard. W - Purple-ish ice that sparkles. E - two sharp ice sickles R - forms a blizzard in a cone that freezes everyone.