"Flemish School" Bacchus: a Jan Van Dalen?

Sotheby's sells on 2 May 2018 in London a "Flemish School, 17th century" Bacchus, estimated at £7,000 to £10,000.

The topic and style remind me of the works by Jan Van Dalen (a painter from Antwerp active ca. 1632-1670). I can find 8 different Bacchus paintings, all of them busts, by Jan Van Dalen online.

The work for sale is e.g. comparable to the above from the Uffizi.

The Laughing Bacchus from the Museum of Budapest is supposed to be a self-portrait.

The above two have perhaps better detail in the anatomy of the body, but the Bacchus from the Kunsthistorisches Museum in Vienna is more similar in that regard.

Perhaps the work for sale is a bit less finished, less polished than the accepted Van Dalen works and should be considered a "Circle of" or something similar, but the relation between the work and the artist seems rather obvious anyway.