Olsson is one of only a few artists who specialised in pure sea painting, in particular twilight and moonlight scenes. He was born in London but moved to St Ives, Cornwall in 1888. Olsson described sea painting as one of the most difficult subjects for a painter.

‘For one whose heart draws him to the sea, in the first place must have an exceptionally retentive memory, and be able to grasp in a few moments the effect of the ever-changing movements of the sea and sky; he must have a delicate and subtle sense of colour, and have the ability to place the main features of his impression on the subject of the subject on the canvas with a few strokes of the brush, and beside this, he must be prepared to face a brave fight with the elements, which will frequently be against him.’

Julius Olsson, 1934