Nah, I just happen to like the characters in the same image (I was tempted to put in the whole cast for each series, but it'll be too small to be seen), plus it saves excessive size of the avatar.
Mayoi Neko Overrun!
Nisekoi
School Rumble (+Ni Gakki, San Gakki - OVA's)
Shin Chan (old classic - not the newer ones/movies)
To Love-Ru (+OVA's, Motto, Darkness)