De Breanski lived in Greenwich. He specialised in painting Welsh and Scottish landscapes at dusk. He exhibited many works at the Royal Academy, at Suffolk Street, at the New Water-Colour Society, and at other venues in London from 1869.

Museum and Gallery Holdings

Brighton (Royal Pavilion and Mus.): View of Burnham Beeches (oil on canvas)

Greenock (McLean Mus. and AG): A Scotch Lake at Eventide (oil on canvas)

Newcastle-upon-Tyne (Laing AG): Henley Regatta (1881, oil on canvas); Sentinels of the Forest (1870-1890, oil on canvas)

Southampton (City AG): Evening Repose, Burnham Beeches (oil on canvas); Golden Sunset, Loch Lubnaig (oil on canvas)

Sydney (AG of New South Wales): Evening. 'Softly Falls the Even Light etc' (c. 1872, oil on canvas)

Torquay (Torre Abbey Historic House and Gal.): The River Wey (oil on canvas); Hayes Common, Kent (oil on canvas)