In 1755 he was awarded a gold medal in painting at the Royal Danish Academy of Fine Arts, but was denied entry into the institution.
He quickly developed a reputation for his portraits, and between 1757 and 1772 he traveled and worked in Saint Petersburg where he became the imperial court painter.
After a number of lucrative commissions, Eriksen returned to Denmark to continue his work as a royal portraitist.
He was now some years busy, painting several times Dowager Queen Juliana Maria and Prince Frederick.
In the collection at Rosenborg are a few works by him: image in pastel of Juliana Maria; portrait of Lorenz Spengler an art turner; one Caroline Mathilde with her son on her lap, attributed also Eriksen.