choji - yutaka kamogawa (by association, probably also did ino & shikamaru)
kiba - chiyuki tanaka (by association, probably also did shino & hinata)
neji/tenten - seiko asai
lee - artist_unknown
naruto - artist_unknown (the face corrections are not good and make it difficult to tell who was originally responsible)

Layout for the forest & a single piece of genga for Lee: