The feature of the three portraits, including the unconfirmed portrait of Yoritomo, is its exquisite and realistic drawing style, and it has been evaluated that such style was established when the influence of a realistic portrait style flourished in the Sung China period came to Japan at the end of the 12th century.
三像は、伝頼朝像を筆頭として精緻で写実的な画風が特徴的であり、中国宋代に隆盛した写実的な肖像画の影響が12世紀末の日本に伝わって成立したものと評価されてきた。