There’s a wonderful collection of colour portraits for sale at FINEARTAMERICA.COM , mainly by the artist John Springfield (about whom I could find nothing on the agency which displays his work –The Esoteric Art Agency.
All the paintings can be bought as framed prints, posters, greetings cards etc. And the prices range from £18 upwards.

Joel McCrea

Lauren Bacall

Glenn Ford

Buster Crabbe, Jean Rogers

Rory Calhoun

Dan Duryea

Lucille Ball

Fred MacMurray

Kay Francis

Sylvia Sydney

James Cagney

Alan Ladd

Irene Dunne

Ingrid Bergman

Jeanette MacDonald, Nelson Eddy

Dana Andrews

Gregory Peck

Anthony Quinn

Deanna Durbin

Audie Murphy
https://www.imagekind.com/MemberProfile.aspx?MID=8B530FEC-1022-491F-A146-8EA2C8956A2C
Thanks for link.
These are remarkably good, actually seeming to capture more “likeness” than photographs do. The one of Bacall conveys a softer side, reminiscent of Alice Faye.
Yes, lovely portrait of Lauren.
I think you’ll find that they are all copied from photographs.

Here’s the Kay Francis original.
Nevertheless, they are lovely.