Wow. A lot of these styles work really well for these characters (especially "Durarara!!" for Barnaby and Eva for Ivan).

Bunny-chan looks like Shizu-chan, Kotatsu and Keith made me lol, and this art of manga-style parodying has been passed down the Lopez family for GENERATIONS!

Bakemonogatari (Senjougahara's face) for Cis is remarkable.