From a literary standpoint, his work is a failure.
Literal
Literary standpoint [from-から] say-[if-ば], his work [topic-は] failure is.
~的な見地から言えば is a formal framing phrase: 'if one speaks from an X-ical standpoint.' ~的 turns a noun into a な-adjective: 文学 → 文学的 (literary). 言えば is the conditional of 言う, creating 'if one says from...'