On the left, the Gnoll! 7 foot hyena people with a dominance-focused culture! They might have a bit of instinctive bloodlust and drive to hunt, but they're passionate and big on family and super loyal!
On the right, Marilith! 20 ft (6.1 m) to the tip but usually "standing" at around 8 feet (2.4 m). Dominant, incredibly intelligent, the tail naturally grapples, and coordinated/aware enough with all those limbs to address attackers from every angle at once. Also, if the genitals are on the snake side, that means it'll have double cloacal extensions known as "hemipenes".
"Gnolls, goblins, and leucrotta hurl themselves across the last barricade in an elven mansion, as the defenders wield spells and steel against them." An unexpected mixed encounter in an interesting location, in Lissanne Lake's cover painting for Dragon 176, December 1991.