For both photos I had a look at the photographer and for the Liverpool one it is certain that it was from the late eighteenhundreds. Considering the type of clothes on the Warshaw one they date form the same period which is confirmed by the advertising I copied.
Brown, Barnes & Bell
Liverpool branch at 31a Bold Street existed from 1877 till 1890
W.M. MAJORKIEWICZ Plac Krasinskich No. 3 Obok (near) Ogrodu (garden) Warszawa,Poland "Negatives are kept by the photographer and new prints can be ordered at any time...Bad weather makes no difference in photos."