Crazy Deals Danish portrait oil painting of female model with green, beige and blue colors in patinated grey wooden frame – signed “IBN”

This is a portrait oil on plate painting of a female model. It is signed by the artist “IBN”.
It has the female model in center with a blue shirt and deep nuanced dark green background.
It is painted on a plate with a grey wooden frame mounted directly on the plate.
Signs of age:
The painting has a crack in the middle from corner to corner. The frame is patinated due to age. Please see the photos.
Measurements by frame:
Height: 43 cm
Width: 61.5 cm