Here are some more character illustrations. [NOTE: These were scanned from photocopies, so the quality isn’t the greatest.]
An early Thembrian… probably Col. Spigot.
A pair of Shere Khan’s pilots (based on Bagheera). Also used in Tale Spin sales pitch.
Early members of Don Karnage’s “wolf pack.” (A chicken??)
A couple of monkeys. The left one may be a precursor to Wild Cat.
These two views of Baloo crack me up. The left one shows a bomber jacket with epaulettes plus a Hawaiian shirt. (A Rescue Rangers clone?) And on the right, Baloo dons a sporty vest while he plays ‘kick the can.’