Cassius is the one in the xmas sweater (a failed experiment). Ameratto is the White with the grey patch, and Cleo is the Calico who's head you can see. The last photo is a bad one of me with Cleo in my arms.
Wow! I'm impressed you were actually able to put that on your cat! The last time I tried that on my Nova- I got it on her, and in one swift move that lasted maybe 1/2 of a second, she brought her back leg up to the top of her head and somehow the sweater went flying across the room. BTW- beautiful cat!