I don’t recognize it all.
Big characters: Longevity is happy "flower" (the word for flower is uncertain)
Small characters: Li Qiang □ Elegance and wisdom □ Instructions to the King
Seal: Seal of the King
Wang Qian (pseudonym: Fenglongshanren), male, born in 1952, originally from the Yuan clan in Hebei Province. He graduated from the former Beijing Chaoyang College in 1948 and is a retired cadre of Beijing Production and Service Corporation. He is currently a member of the Art Committee of the Chinese Calligraphy Art Research Institute, a member of the China-Korea Culture and Art Committee of the International Artists Association, and a creative researcher of the Chinese Elderly Calligraphy Research Association. Art consultant of Zhongyuan Painting and Calligraphy Academy.