In 1901, through the introduction of Ozaki Kōyō, Maeda enrolled at the art school headed by Kajita Hanko, from whom he received the name "Seison" in 1902.

Under sponsorship of the Japan Fine Arts Academy, he visited Europe in 1922, touring Rome, Florence, Paris and London for almost one year.

In 1944, Maeda was appointed as an official court painter to the Imperial Household Agency, and taught painting to Empress Kōjun.

In 1967, he was selected to assist in the restoration work on the frescos of the Kondo Hall of the temple of Hōryū-ji in Nara together with Yasuda Yukihiko.

[2] Two pieces also by him depicting Japanese camellia were added in the 1970s on either side of the lion dancer painting, called “Shiro-botan” in white and “Beni-botan” in red.

[3][4][5] In 1972, despite his advanced years, he was selected as the person most appropriate to assist in the restoration and preservation work of the ancient frescos in the Takamatsuzuka tumulus.